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Finding the Fourth Proportional to 250,159.92, 375,378.36 and 92,491.80

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Solution

The fourth proportional to 250,159.92, 375,378.36 and 92,491.80 is: 138,788.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,159.92 : 375,378.36 = 92,491.80 : x
  2. Step 2: Convert to fraction form
    250,159.92/375,378.36 = 92,491.80/x
  3. Step 3: Cross multiply
    250,159.92x = 375,378.36 × 92,491.80
  4. Step 4: Simplify right side
    250,159.92x = 34,719,420,197.45
  5. Step 5: Solve for x
    x = 34,719,420,197.45/250,159.92
  6. Step 6: Final answer
    x = 138,788.90

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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.