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Finding the Fourth Proportional to 103,992.70, 156,006.30 and 36,507.24

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Solution

The fourth proportional to 103,992.70, 156,006.30 and 36,507.24 is: 54,766.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,992.70 : 156,006.30 = 36,507.24 : x
  2. Step 2: Convert to fraction form
    103,992.70/156,006.30 = 36,507.24/x
  3. Step 3: Cross multiply
    103,992.70x = 156,006.30 × 36,507.24
  4. Step 4: Simplify right side
    103,992.70x = 5,695,359,435.61
  5. Step 5: Solve for x
    x = 5,695,359,435.61/103,992.70
  6. Step 6: Final answer
    x = 54,766.92

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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.