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Finding the Fourth Proportional to 250,510.88, 345,691.96 and 143,059.92

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Solution

The fourth proportional to 250,510.88, 345,691.96 and 143,059.92 is: 197,415.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,510.88 : 345,691.96 = 143,059.92 : x
  2. Step 2: Convert to fraction form
    250,510.88/345,691.96 = 143,059.92/x
  3. Step 3: Cross multiply
    250,510.88x = 345,691.96 × 143,059.92
  4. Step 4: Simplify right side
    250,510.88x = 49,454,664,142.24
  5. Step 5: Solve for x
    x = 49,454,664,142.24/250,510.88
  6. Step 6: Final answer
    x = 197,415.23

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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.