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Finding the Fourth Proportional to 94,553.80, 141,657.90 and 76,928.20

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Solution

The fourth proportional to 94,553.80, 141,657.90 and 76,928.20 is: 115,251.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,553.80 : 141,657.90 = 76,928.20 : x
  2. Step 2: Convert to fraction form
    94,553.80/141,657.90 = 76,928.20/x
  3. Step 3: Cross multiply
    94,553.80x = 141,657.90 × 76,928.20
  4. Step 4: Simplify right side
    94,553.80x = 10,897,487,262.78
  5. Step 5: Solve for x
    x = 10,897,487,262.78/94,553.80
  6. Step 6: Final answer
    x = 115,251.71

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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.