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Finding the Fourth Proportional to 247,685.40, 341,910.47 and 167,221.92

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Solution

The fourth proportional to 247,685.40, 341,910.47 and 167,221.92 is: 230,836.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,685.40 : 341,910.47 = 167,221.92 : x
  2. Step 2: Convert to fraction form
    247,685.40/341,910.47 = 167,221.92/x
  3. Step 3: Cross multiply
    247,685.40x = 341,910.47 × 167,221.92
  4. Step 4: Simplify right side
    247,685.40x = 57,174,924,425.39
  5. Step 5: Solve for x
    x = 57,174,924,425.39/247,685.40
  6. Step 6: Final answer
    x = 230,836.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.