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Finding the Fourth Proportional to 84,471.10, 126,710.85 and 25,301.13

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Solution

The fourth proportional to 84,471.10, 126,710.85 and 25,301.13 is: 37,952.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,471.10 : 126,710.85 = 25,301.13 : x
  2. Step 2: Convert to fraction form
    84,471.10/126,710.85 = 25,301.13/x
  3. Step 3: Cross multiply
    84,471.10x = 126,710.85 × 25,301.13
  4. Step 4: Simplify right side
    84,471.10x = 3,205,927,307.97
  5. Step 5: Solve for x
    x = 3,205,927,307.97/84,471.10
  6. Step 6: Final answer
    x = 37,952.95

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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.