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Finding the Fourth Proportional to 247,902.17, 342,097.88 and 140,506.92

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Solution

The fourth proportional to 247,902.17, 342,097.88 and 140,506.92 is: 193,895.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,902.17 : 342,097.88 = 140,506.92 : x
  2. Step 2: Convert to fraction form
    247,902.17/342,097.88 = 140,506.92/x
  3. Step 3: Cross multiply
    247,902.17x = 342,097.88 × 140,506.92
  4. Step 4: Simplify right side
    247,902.17x = 48,067,118,754.80
  5. Step 5: Solve for x
    x = 48,067,118,754.80/247,902.17
  6. Step 6: Final answer
    x = 193,895.52

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1.5x scale

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.