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Finding the Fourth Proportional to 123,542.60, 185,313.90 and 44,659.40

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Solution

The fourth proportional to 123,542.60, 185,313.90 and 44,659.40 is: 66,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,542.60 : 185,313.90 = 44,659.40 : x
  2. Step 2: Convert to fraction form
    123,542.60/185,313.90 = 44,659.40/x
  3. Step 3: Cross multiply
    123,542.60x = 185,313.90 × 44,659.40
  4. Step 4: Simplify right side
    123,542.60x = 8,276,007,585.66
  5. Step 5: Solve for x
    x = 8,276,007,585.66/123,542.60
  6. Step 6: Final answer
    x = 66,989.10

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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.