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Finding the Fourth Proportional to 123,859.29, 185,731.41 and 60,682.53

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Solution

The fourth proportional to 123,859.29, 185,731.41 and 60,682.53 is: 90,995.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,859.29 : 185,731.41 = 60,682.53 : x
  2. Step 2: Convert to fraction form
    123,859.29/185,731.41 = 60,682.53/x
  3. Step 3: Cross multiply
    123,859.29x = 185,731.41 × 60,682.53
  4. Step 4: Simplify right side
    123,859.29x = 11,270,651,859.27
  5. Step 5: Solve for x
    x = 11,270,651,859.27/123,859.29
  6. Step 6: Final answer
    x = 90,995.61

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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.