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Finding the Fourth Proportional to 54,452,136.90, 81,678,205.35 and 54,452,136.90

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Solution

The fourth proportional to 54,452,136.90, 81,678,205.35 and 54,452,136.90 is: 81,678,205.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,452,136.90 : 81,678,205.35 = 54,452,136.90 : x
  2. Step 2: Convert to fraction form
    54,452,136.90/81,678,205.35 = 54,452,136.90/x
  3. Step 3: Cross multiply
    54,452,136.90x = 81,678,205.35 × 54,452,136.90
  4. Step 4: Simplify right side
    54,452,136.90x = 4,447,552,819,464,512
  5. Step 5: Solve for x
    x = 4,447,552,819,464,512/54,452,136.90
  6. Step 6: Final answer
    x = 81,678,205.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.