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Finding the Fourth Proportional to 108,558.61, 149,793.46 and 60,813.97

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Solution

The fourth proportional to 108,558.61, 149,793.46 and 60,813.97 is: 83,913.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,558.61 : 149,793.46 = 60,813.97 : x
  2. Step 2: Convert to fraction form
    108,558.61/149,793.46 = 60,813.97/x
  3. Step 3: Cross multiply
    108,558.61x = 149,793.46 × 60,813.97
  4. Step 4: Simplify right side
    108,558.61x = 9,109,534,982.64
  5. Step 5: Solve for x
    x = 9,109,534,982.64/108,558.61
  6. Step 6: Final answer
    x = 83,913.52

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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.