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Finding the Fourth Proportional to 123,439.60, 185,139.60 and 44,513.20

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Solution

The fourth proportional to 123,439.60, 185,139.60 and 44,513.20 is: 66,762.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,439.60 : 185,139.60 = 44,513.20 : x
  2. Step 2: Convert to fraction form
    123,439.60/185,139.60 = 44,513.20/x
  3. Step 3: Cross multiply
    123,439.60x = 185,139.60 × 44,513.20
  4. Step 4: Simplify right side
    123,439.60x = 8,241,156,042.72
  5. Step 5: Solve for x
    x = 8,241,156,042.72/123,439.60
  6. Step 6: Final answer
    x = 66,762.66

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.