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Finding the Fourth Proportional to 250,082.59, 345,116.73 and 142,658.97

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Solution

The fourth proportional to 250,082.59, 345,116.73 and 142,658.97 is: 196,870.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,082.59 : 345,116.73 = 142,658.97 : x
  2. Step 2: Convert to fraction form
    250,082.59/345,116.73 = 142,658.97/x
  3. Step 3: Cross multiply
    250,082.59x = 345,116.73 × 142,658.97
  4. Step 4: Simplify right side
    250,082.59x = 49,233,997,209.95
  5. Step 5: Solve for x
    x = 49,233,997,209.95/250,082.59
  6. Step 6: Final answer
    x = 196,870.95

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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.