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Finding the Fourth Proportional to 87,898.91, 121,299.71 and 47,610.27

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Solution

The fourth proportional to 87,898.91, 121,299.71 and 47,610.27 is: 65,701.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,898.91 : 121,299.71 = 47,610.27 : x
  2. Step 2: Convert to fraction form
    87,898.91/121,299.71 = 47,610.27/x
  3. Step 3: Cross multiply
    87,898.91x = 121,299.71 × 47,610.27
  4. Step 4: Simplify right side
    87,898.91x = 5,775,111,705.97
  5. Step 5: Solve for x
    x = 5,775,111,705.97/87,898.91
  6. Step 6: Final answer
    x = 65,701.75

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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.