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Finding the Fourth Proportional to 138,922.66, 208,156.17 and 58,896.68

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Solution

The fourth proportional to 138,922.66, 208,156.17 and 58,896.68 is: 88,248.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,922.66 : 208,156.17 = 58,896.68 : x
  2. Step 2: Convert to fraction form
    138,922.66/208,156.17 = 58,896.68/x
  3. Step 3: Cross multiply
    138,922.66x = 208,156.17 × 58,896.68
  4. Step 4: Simplify right side
    138,922.66x = 12,259,707,334.52
  5. Step 5: Solve for x
    x = 12,259,707,334.52/138,922.66
  6. Step 6: Final answer
    x = 88,248.44

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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.