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Finding the Fourth Proportional to 108,793.68, 163,101.96 and 42,199.44

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Solution

The fourth proportional to 108,793.68, 163,101.96 and 42,199.44 is: 63,264.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,793.68 : 163,101.96 = 42,199.44 : x
  2. Step 2: Convert to fraction form
    108,793.68/163,101.96 = 42,199.44/x
  3. Step 3: Cross multiply
    108,793.68x = 163,101.96 × 42,199.44
  4. Step 4: Simplify right side
    108,793.68x = 6,882,811,374.90
  5. Step 5: Solve for x
    x = 6,882,811,374.90/108,793.68
  6. Step 6: Final answer
    x = 63,264.81

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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.