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Finding the Fourth Proportional to 247,586.88, 341,672.64 and 140,154.56

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Solution

The fourth proportional to 247,586.88, 341,672.64 and 140,154.56 is: 193,414.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,586.88 : 341,672.64 = 140,154.56 : x
  2. Step 2: Convert to fraction form
    247,586.88/341,672.64 = 140,154.56/x
  3. Step 3: Cross multiply
    247,586.88x = 341,672.64 × 140,154.56
  4. Step 4: Simplify right side
    247,586.88x = 47,886,978,523.24
  5. Step 5: Solve for x
    x = 47,886,978,523.24/247,586.88
  6. Step 6: Final answer
    x = 193,414.85

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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.