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Finding the Fourth Proportional to 474,966.83, 712,451.68 and 115,136.27

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Solution

The fourth proportional to 474,966.83, 712,451.68 and 115,136.27 is: 172,704.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,966.83 : 712,451.68 = 115,136.27 : x
  2. Step 2: Convert to fraction form
    474,966.83/712,451.68 = 115,136.27/x
  3. Step 3: Cross multiply
    474,966.83x = 712,451.68 × 115,136.27
  4. Step 4: Simplify right side
    474,966.83x = 82,029,028,990.43
  5. Step 5: Solve for x
    x = 82,029,028,990.43/474,966.83
  6. Step 6: Final answer
    x = 172,704.75

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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.