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Finding the Fourth Proportional to 71,101.55, 106,652.63 and 17,793.39

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Solution

The fourth proportional to 71,101.55, 106,652.63 and 17,793.39 is: 26,690.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,101.55 : 106,652.63 = 17,793.39 : x
  2. Step 2: Convert to fraction form
    71,101.55/106,652.63 = 17,793.39/x
  3. Step 3: Cross multiply
    71,101.55x = 106,652.63 × 17,793.39
  4. Step 4: Simplify right side
    71,101.55x = 1,897,711,840.12
  5. Step 5: Solve for x
    x = 1,897,711,840.12/71,101.55
  6. Step 6: Final answer
    x = 26,690.16

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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.