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Finding the Fourth Proportional to 109,761.95, 151,471.13 and 62,015.28

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Solution

The fourth proportional to 109,761.95, 151,471.13 and 62,015.28 is: 85,580.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,761.95 : 151,471.13 = 62,015.28 : x
  2. Step 2: Convert to fraction form
    109,761.95/151,471.13 = 62,015.28/x
  3. Step 3: Cross multiply
    109,761.95x = 151,471.13 × 62,015.28
  4. Step 4: Simplify right side
    109,761.95x = 9,393,524,228.79
  5. Step 5: Solve for x
    x = 9,393,524,228.79/109,761.95
  6. Step 6: Final answer
    x = 85,580.88

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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.