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Finding the Fourth Proportional to 117,480.97, 162,124.91 and 63,766.50

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Solution

The fourth proportional to 117,480.97, 162,124.91 and 63,766.50 is: 87,998.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,480.97 : 162,124.91 = 63,766.50 : x
  2. Step 2: Convert to fraction form
    117,480.97/162,124.91 = 63,766.50/x
  3. Step 3: Cross multiply
    117,480.97x = 162,124.91 × 63,766.50
  4. Step 4: Simplify right side
    117,480.97x = 10,338,138,073.52
  5. Step 5: Solve for x
    x = 10,338,138,073.52/117,480.97
  6. Step 6: Final answer
    x = 87,998.41

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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.