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Finding the Fourth Proportional to 108,475.88, 149,591.54 and 84,593.84

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Solution

The fourth proportional to 108,475.88, 149,591.54 and 84,593.84 is: 116,657.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,475.88 : 149,591.54 = 84,593.84 : x
  2. Step 2: Convert to fraction form
    108,475.88/149,591.54 = 84,593.84/x
  3. Step 3: Cross multiply
    108,475.88x = 149,591.54 × 84,593.84
  4. Step 4: Simplify right side
    108,475.88x = 12,654,522,800.11
  5. Step 5: Solve for x
    x = 12,654,522,800.11/108,475.88
  6. Step 6: Final answer
    x = 116,657.48

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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.