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Finding the Fourth Proportional to 166,934.20, 250,061.10 and 103,559.80

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Solution

The fourth proportional to 166,934.20, 250,061.10 and 103,559.80 is: 155,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,934.20 : 250,061.10 = 103,559.80 : x
  2. Step 2: Convert to fraction form
    166,934.20/250,061.10 = 103,559.80/x
  3. Step 3: Cross multiply
    166,934.20x = 250,061.10 × 103,559.80
  4. Step 4: Simplify right side
    166,934.20x = 25,896,277,503.78
  5. Step 5: Solve for x
    x = 25,896,277,503.78/166,934.20
  6. Step 6: Final answer
    x = 155,128.65

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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.