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Finding the Fourth Proportional to 73,143,424.10, 109,715,136.15 and 73,143,424.10

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Solution

The fourth proportional to 73,143,424.10, 109,715,136.15 and 73,143,424.10 is: 109,715,136.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,143,424.10 : 109,715,136.15 = 73,143,424.10 : x
  2. Step 2: Convert to fraction form
    73,143,424.10/109,715,136.15 = 73,143,424.10/x
  3. Step 3: Cross multiply
    73,143,424.10x = 109,715,136.15 × 73,143,424.10
  4. Step 4: Simplify right side
    73,143,424.10x = 8,024,940,733,608,691
  5. Step 5: Solve for x
    x = 8,024,940,733,608,691/73,143,424.10
  6. Step 6: Final answer
    x = 109,715,136.15

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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.