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Finding the Fourth Proportional to 134,082.76, 185,029.14 and 74,470.60

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Solution

The fourth proportional to 134,082.76, 185,029.14 and 74,470.60 is: 102,766.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,082.76 : 185,029.14 = 74,470.60 : x
  2. Step 2: Convert to fraction form
    134,082.76/185,029.14 = 74,470.60/x
  3. Step 3: Cross multiply
    134,082.76x = 185,029.14 × 74,470.60
  4. Step 4: Simplify right side
    134,082.76x = 13,779,231,073.28
  5. Step 5: Solve for x
    x = 13,779,231,073.28/134,082.76
  6. Step 6: Final answer
    x = 102,766.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.