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Finding the Fourth Proportional to 123,429.60, 185,124.60 and 44,503.20

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Solution

The fourth proportional to 123,429.60, 185,124.60 and 44,503.20 is: 66,747.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,429.60 : 185,124.60 = 44,503.20 : x
  2. Step 2: Convert to fraction form
    123,429.60/185,124.60 = 44,503.20/x
  3. Step 3: Cross multiply
    123,429.60x = 185,124.60 × 44,503.20
  4. Step 4: Simplify right side
    123,429.60x = 8,238,637,098.72
  5. Step 5: Solve for x
    x = 8,238,637,098.72/123,429.60
  6. Step 6: Final answer
    x = 66,747.66

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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.