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Finding the Fourth Proportional to 247,705.68, 341,854.92 and 140,294.82

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Solution

The fourth proportional to 247,705.68, 341,854.92 and 140,294.82 is: 193,618.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,705.68 : 341,854.92 = 140,294.82 : x
  2. Step 2: Convert to fraction form
    247,705.68/341,854.92 = 140,294.82/x
  3. Step 3: Cross multiply
    247,705.68x = 341,854.92 × 140,294.82
  4. Step 4: Simplify right side
    247,705.68x = 47,960,474,467.51
  5. Step 5: Solve for x
    x = 47,960,474,467.51/247,705.68
  6. Step 6: Final answer
    x = 193,618.79

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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.