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Finding the Fourth Proportional to 67,202.52, 100,818.81 and 20,459.04

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Solution

The fourth proportional to 67,202.52, 100,818.81 and 20,459.04 is: 30,693.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,202.52 : 100,818.81 = 20,459.04 : x
  2. Step 2: Convert to fraction form
    67,202.52/100,818.81 = 20,459.04/x
  3. Step 3: Cross multiply
    67,202.52x = 100,818.81 × 20,459.04
  4. Step 4: Simplify right side
    67,202.52x = 2,062,656,066.54
  5. Step 5: Solve for x
    x = 2,062,656,066.54/67,202.52
  6. Step 6: Final answer
    x = 30,693.14

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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.