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Finding the Fourth Proportional to 108,391.71, 162,571.15 and 29,512.15

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Solution

The fourth proportional to 108,391.71, 162,571.15 and 29,512.15 is: 44,263.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,391.71 : 162,571.15 = 29,512.15 : x
  2. Step 2: Convert to fraction form
    108,391.71/162,571.15 = 29,512.15/x
  3. Step 3: Cross multiply
    108,391.71x = 162,571.15 × 29,512.15
  4. Step 4: Simplify right side
    108,391.71x = 4,797,824,164.47
  5. Step 5: Solve for x
    x = 4,797,824,164.47/108,391.71
  6. Step 6: Final answer
    x = 44,263.76

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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.