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Finding the Fourth Proportional to 73,351,520.20, 109,788,131.85 and 73,351,520.20

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Solution

The fourth proportional to 73,351,520.20, 109,788,131.85 and 73,351,520.20 is: 109,788,131.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,351,520.20 : 109,788,131.85 = 73,351,520.20 : x
  2. Step 2: Convert to fraction form
    73,351,520.20/109,788,131.85 = 73,351,520.20/x
  3. Step 3: Cross multiply
    73,351,520.20x = 109,788,131.85 × 73,351,520.20
  4. Step 4: Simplify right side
    73,351,520.20x = 8,053,126,371,115,538
  5. Step 5: Solve for x
    x = 8,053,126,371,115,538/73,351,520.20
  6. Step 6: Final answer
    x = 109,788,131.85

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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.