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Finding the Fourth Proportional to 67,113.62, 100,748.20 and 36,009.62

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Solution

The fourth proportional to 67,113.62, 100,748.20 and 36,009.62 is: 54,056.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,113.62 : 100,748.20 = 36,009.62 : x
  2. Step 2: Convert to fraction form
    67,113.62/100,748.20 = 36,009.62/x
  3. Step 3: Cross multiply
    67,113.62x = 100,748.20 × 36,009.62
  4. Step 4: Simplify right side
    67,113.62x = 3,627,904,397.68
  5. Step 5: Solve for x
    x = 3,627,904,397.68/67,113.62
  6. Step 6: Final answer
    x = 54,056.16

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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.