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Finding the Fourth Proportional to 250,660.70, 345,909.42 and 135,941.88

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Solution

The fourth proportional to 250,660.70, 345,909.42 and 135,941.88 is: 187,598.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,660.70 : 345,909.42 = 135,941.88 : x
  2. Step 2: Convert to fraction form
    250,660.70/345,909.42 = 135,941.88/x
  3. Step 3: Cross multiply
    250,660.70x = 345,909.42 × 135,941.88
  4. Step 4: Simplify right side
    250,660.70x = 47,023,575,578.70
  5. Step 5: Solve for x
    x = 47,023,575,578.70/250,660.70
  6. Step 6: Final answer
    x = 187,598.51

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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.