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Finding the Fourth Proportional to 123,627.60, 185,393.19 and 42,559.29

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Solution

The fourth proportional to 123,627.60, 185,393.19 and 42,559.29 is: 63,822.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,627.60 : 185,393.19 = 42,559.29 : x
  2. Step 2: Convert to fraction form
    123,627.60/185,393.19 = 42,559.29/x
  3. Step 3: Cross multiply
    123,627.60x = 185,393.19 × 42,559.29
  4. Step 4: Simplify right side
    123,627.60x = 7,890,202,537.24
  5. Step 5: Solve for x
    x = 7,890,202,537.24/123,627.60
  6. Step 6: Final answer
    x = 63,822.34

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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.