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Finding the Fourth Proportional to 54,196.40, 81,294.60 and 30,868.40

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Solution

The fourth proportional to 54,196.40, 81,294.60 and 30,868.40 is: 46,302.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,196.40 : 81,294.60 = 30,868.40 : x
  2. Step 2: Convert to fraction form
    54,196.40/81,294.60 = 30,868.40/x
  3. Step 3: Cross multiply
    54,196.40x = 81,294.60 × 30,868.40
  4. Step 4: Simplify right side
    54,196.40x = 2,509,434,230.64
  5. Step 5: Solve for x
    x = 2,509,434,230.64/54,196.40
  6. Step 6: Final answer
    x = 46,302.60

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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.