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Finding the Fourth Proportional to 123,695.76, 185,543.16 and 44,791.53

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Solution

The fourth proportional to 123,695.76, 185,543.16 and 44,791.53 is: 67,187.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,695.76 : 185,543.16 = 44,791.53 : x
  2. Step 2: Convert to fraction form
    123,695.76/185,543.16 = 44,791.53/x
  3. Step 3: Cross multiply
    123,695.76x = 185,543.16 × 44,791.53
  4. Step 4: Simplify right side
    123,695.76x = 8,310,762,017.43
  5. Step 5: Solve for x
    x = 8,310,762,017.43/123,695.76
  6. Step 6: Final answer
    x = 67,187.12

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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.