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Finding the Fourth Proportional to 151,343.76, 226,979.08 and 67,057.32

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Solution

The fourth proportional to 151,343.76, 226,979.08 and 67,057.32 is: 100,569.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,343.76 : 226,979.08 = 67,057.32 : x
  2. Step 2: Convert to fraction form
    151,343.76/226,979.08 = 67,057.32/x
  3. Step 3: Cross multiply
    151,343.76x = 226,979.08 × 67,057.32
  4. Step 4: Simplify right side
    151,343.76x = 15,220,608,800.87
  5. Step 5: Solve for x
    x = 15,220,608,800.87/151,343.76
  6. Step 6: Final answer
    x = 100,569.78

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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.