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Finding the Fourth Proportional to 247,656.76, 341,769.99 and 140,223.76

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Solution

The fourth proportional to 247,656.76, 341,769.99 and 140,223.76 is: 193,510.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,656.76 : 341,769.99 = 140,223.76 : x
  2. Step 2: Convert to fraction form
    247,656.76/341,769.99 = 140,223.76/x
  3. Step 3: Cross multiply
    247,656.76x = 341,769.99 × 140,223.76
  4. Step 4: Simplify right side
    247,656.76x = 47,924,273,052.96
  5. Step 5: Solve for x
    x = 47,924,273,052.96/247,656.76
  6. Step 6: Final answer
    x = 193,510.86

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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.