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Finding the Fourth Proportional to 100,575.10, 141,198.80 and 100,575.10

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Solution

The fourth proportional to 100,575.10, 141,198.80 and 100,575.10 is: 141,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,575.10 : 141,198.80 = 100,575.10 : x
  2. Step 2: Convert to fraction form
    100,575.10/141,198.80 = 100,575.10/x
  3. Step 3: Cross multiply
    100,575.10x = 141,198.80 × 100,575.10
  4. Step 4: Simplify right side
    100,575.10x = 14,201,083,429.88
  5. Step 5: Solve for x
    x = 14,201,083,429.88/100,575.10
  6. Step 6: Final answer
    x = 141,198.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.