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Finding the Fourth Proportional to 63,431,139.90, 88,612,277.10 and 63,431,139.90

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Solution

The fourth proportional to 63,431,139.90, 88,612,277.10 and 63,431,139.90 is: 88,612,277.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,431,139.90 : 88,612,277.10 = 63,431,139.90 : x
  2. Step 2: Convert to fraction form
    63,431,139.90/88,612,277.10 = 63,431,139.90/x
  3. Step 3: Cross multiply
    63,431,139.90x = 88,612,277.10 × 63,431,139.90
  4. Step 4: Simplify right side
    63,431,139.90x = 5,620,777,745,587,666
  5. Step 5: Solve for x
    x = 5,620,777,745,587,666/63,431,139.90
  6. Step 6: Final answer
    x = 88,612,277.10

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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.