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Finding the Fourth Proportional to 107,691.93, 161,555.31 and 36,620.91

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Solution

The fourth proportional to 107,691.93, 161,555.31 and 36,620.91 is: 54,937.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,691.93 : 161,555.31 = 36,620.91 : x
  2. Step 2: Convert to fraction form
    107,691.93/161,555.31 = 36,620.91/x
  3. Step 3: Cross multiply
    107,691.93x = 161,555.31 × 36,620.91
  4. Step 4: Simplify right side
    107,691.93x = 5,916,302,467.53
  5. Step 5: Solve for x
    x = 5,916,302,467.53/107,691.93
  6. Step 6: Final answer
    x = 54,937.29

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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.