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Finding the Fourth Proportional to 198,856.88, 274,422.53 and 109,432.88

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Solution

The fourth proportional to 198,856.88, 274,422.53 and 109,432.88 is: 151,017.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,856.88 : 274,422.53 = 109,432.88 : x
  2. Step 2: Convert to fraction form
    198,856.88/274,422.53 = 109,432.88/x
  3. Step 3: Cross multiply
    198,856.88x = 274,422.53 × 109,432.88
  4. Step 4: Simplify right side
    198,856.88x = 30,030,847,794.79
  5. Step 5: Solve for x
    x = 30,030,847,794.79/198,856.88
  6. Step 6: Final answer
    x = 151,017.39

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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.