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Finding the Fourth Proportional to 108,575.52, 162,865.44 and 71,372.76

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Solution

The fourth proportional to 108,575.52, 162,865.44 and 71,372.76 is: 107,060.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,575.52 : 162,865.44 = 71,372.76 : x
  2. Step 2: Convert to fraction form
    108,575.52/162,865.44 = 71,372.76/x
  3. Step 3: Cross multiply
    108,575.52x = 162,865.44 × 71,372.76
  4. Step 4: Simplify right side
    108,575.52x = 11,624,155,961.41
  5. Step 5: Solve for x
    x = 11,624,155,961.41/108,575.52
  6. Step 6: Final answer
    x = 107,060.56

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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.