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Finding the Fourth Proportional to 161,174.90, 241,678.92 and 72,351.92

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Solution

The fourth proportional to 161,174.90, 241,678.92 and 72,351.92 is: 108,490.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,174.90 : 241,678.92 = 72,351.92 : x
  2. Step 2: Convert to fraction form
    161,174.90/241,678.92 = 72,351.92/x
  3. Step 3: Cross multiply
    161,174.90x = 241,678.92 × 72,351.92
  4. Step 4: Simplify right side
    161,174.90x = 17,485,933,885.53
  5. Step 5: Solve for x
    x = 17,485,933,885.53/161,174.90
  6. Step 6: Final answer
    x = 108,490.43

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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.