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Finding the Fourth Proportional to 89,700,418.80, 134,613,613.80 and 38,619,097.20

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Solution

The fourth proportional to 89,700,418.80, 134,613,613.80 and 38,619,097.20 is: 57,955,763.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,700,418.80 : 134,613,613.80 = 38,619,097.20 : x
  2. Step 2: Convert to fraction form
    89,700,418.80/134,613,613.80 = 38,619,097.20/x
  3. Step 3: Cross multiply
    89,700,418.80x = 134,613,613.80 × 38,619,097.20
  4. Step 4: Simplify right side
    89,700,418.80x = 5,198,656,235,785,462
  5. Step 5: Solve for x
    x = 5,198,656,235,785,462/89,700,418.80
  6. Step 6: Final answer
    x = 57,955,763.25

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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.