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Finding the Fourth Proportional to 108,057.60, 149,115.60 and 67,793.04

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Solution

The fourth proportional to 108,057.60, 149,115.60 and 67,793.04 is: 93,551.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,057.60 : 149,115.60 = 67,793.04 : x
  2. Step 2: Convert to fraction form
    108,057.60/149,115.60 = 67,793.04/x
  3. Step 3: Cross multiply
    108,057.60x = 149,115.60 × 67,793.04
  4. Step 4: Simplify right side
    108,057.60x = 10,108,999,835.42
  5. Step 5: Solve for x
    x = 10,108,999,835.42/108,057.60
  6. Step 6: Final answer
    x = 93,551.96

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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.