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Finding the Fourth Proportional to 187,292.94, 280,808.16 and 68,948.92

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Solution

The fourth proportional to 187,292.94, 280,808.16 and 68,948.92 is: 103,375.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,292.94 : 280,808.16 = 68,948.92 : x
  2. Step 2: Convert to fraction form
    187,292.94/280,808.16 = 68,948.92/x
  3. Step 3: Cross multiply
    187,292.94x = 280,808.16 × 68,948.92
  4. Step 4: Simplify right side
    187,292.94x = 19,361,419,359.19
  5. Step 5: Solve for x
    x = 19,361,419,359.19/187,292.94
  6. Step 6: Final answer
    x = 103,375.06

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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.