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Finding the Fourth Proportional to 108,522.52, 149,756.70 and 63,201.88

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Solution

The fourth proportional to 108,522.52, 149,756.70 and 63,201.88 is: 87,216.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,522.52 : 149,756.70 = 63,201.88 : x
  2. Step 2: Convert to fraction form
    108,522.52/149,756.70 = 63,201.88/x
  3. Step 3: Cross multiply
    108,522.52x = 149,756.70 × 63,201.88
  4. Step 4: Simplify right side
    108,522.52x = 9,464,904,982.60
  5. Step 5: Solve for x
    x = 9,464,904,982.60/108,522.52
  6. Step 6: Final answer
    x = 87,216.04

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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.