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Finding the Fourth Proportional to 109,876.94, 151,604.97 and 62,119.88

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Solution

The fourth proportional to 109,876.94, 151,604.97 and 62,119.88 is: 85,711.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,876.94 : 151,604.97 = 62,119.88 : x
  2. Step 2: Convert to fraction form
    109,876.94/151,604.97 = 62,119.88/x
  3. Step 3: Cross multiply
    109,876.94x = 151,604.97 × 62,119.88
  4. Step 4: Simplify right side
    109,876.94x = 9,417,682,543.80
  5. Step 5: Solve for x
    x = 9,417,682,543.80/109,876.94
  6. Step 6: Final answer
    x = 85,711.18

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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.