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Finding the Fourth Proportional to 73,428,694.80, 110,143,042.20 and 60,663,613.20

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Solution

The fourth proportional to 73,428,694.80, 110,143,042.20 and 60,663,613.20 is: 90,995,419.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,428,694.80 : 110,143,042.20 = 60,663,613.20 : x
  2. Step 2: Convert to fraction form
    73,428,694.80/110,143,042.20 = 60,663,613.20/x
  3. Step 3: Cross multiply
    73,428,694.80x = 110,143,042.20 × 60,663,613.20
  4. Step 4: Simplify right side
    73,428,694.80x = 6,681,674,908,692,078
  5. Step 5: Solve for x
    x = 6,681,674,908,692,078/73,428,694.80
  6. Step 6: Final answer
    x = 90,995,419.80

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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.