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Finding the Fourth Proportional to 83,499.30, 125,248.95 and 54,958.95

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Solution

The fourth proportional to 83,499.30, 125,248.95 and 54,958.95 is: 82,438.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,499.30 : 125,248.95 = 54,958.95 : x
  2. Step 2: Convert to fraction form
    83,499.30/125,248.95 = 54,958.95/x
  3. Step 3: Cross multiply
    83,499.30x = 125,248.95 × 54,958.95
  4. Step 4: Simplify right side
    83,499.30x = 6,883,550,780.60
  5. Step 5: Solve for x
    x = 6,883,550,780.60/83,499.30
  6. Step 6: Final answer
    x = 82,438.43

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1.5x scale

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.