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Finding the Fourth Proportional to 247,967.80, 371,951.70 and 148,240.60

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Solution

The fourth proportional to 247,967.80, 371,951.70 and 148,240.60 is: 222,360.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,967.80 : 371,951.70 = 148,240.60 : x
  2. Step 2: Convert to fraction form
    247,967.80/371,951.70 = 148,240.60/x
  3. Step 3: Cross multiply
    247,967.80x = 371,951.70 × 148,240.60
  4. Step 4: Simplify right side
    247,967.80x = 55,138,343,179.02
  5. Step 5: Solve for x
    x = 55,138,343,179.02/247,967.80
  6. Step 6: Final answer
    x = 222,360.90

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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.