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Finding the Fourth Proportional to 118,717.80, 178,191.90 and 59,620.20

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Solution

The fourth proportional to 118,717.80, 178,191.90 and 59,620.20 is: 89,488.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,717.80 : 178,191.90 = 59,620.20 : x
  2. Step 2: Convert to fraction form
    118,717.80/178,191.90 = 59,620.20/x
  3. Step 3: Cross multiply
    118,717.80x = 178,191.90 × 59,620.20
  4. Step 4: Simplify right side
    118,717.80x = 10,623,836,716.38
  5. Step 5: Solve for x
    x = 10,623,836,716.38/118,717.80
  6. Step 6: Final answer
    x = 89,488.15

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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.