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Finding the Fourth Proportional to 109,340.88, 150,899.28 and 61,591.44

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Solution

The fourth proportional to 109,340.88, 150,899.28 and 61,591.44 is: 85,001.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,340.88 : 150,899.28 = 61,591.44 : x
  2. Step 2: Convert to fraction form
    109,340.88/150,899.28 = 61,591.44/x
  3. Step 3: Cross multiply
    109,340.88x = 150,899.28 × 61,591.44
  4. Step 4: Simplify right side
    109,340.88x = 9,294,103,950.16
  5. Step 5: Solve for x
    x = 9,294,103,950.16/109,340.88
  6. Step 6: Final answer
    x = 85,001.18

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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.