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Finding the Fourth Proportional to 108,885.42, 163,351.20 and 38,764.50

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Solution

The fourth proportional to 108,885.42, 163,351.20 and 38,764.50 is: 58,154.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,885.42 : 163,351.20 = 38,764.50 : x
  2. Step 2: Convert to fraction form
    108,885.42/163,351.20 = 38,764.50/x
  3. Step 3: Cross multiply
    108,885.42x = 163,351.20 × 38,764.50
  4. Step 4: Simplify right side
    108,885.42x = 6,332,227,592.40
  5. Step 5: Solve for x
    x = 6,332,227,592.40/108,885.42
  6. Step 6: Final answer
    x = 58,154.96

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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.