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Finding the Fourth Proportional to 73,127.88, 109,691.81 and 17,723.88

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Solution

The fourth proportional to 73,127.88, 109,691.81 and 17,723.88 is: 26,585.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,127.88 : 109,691.81 = 17,723.88 : x
  2. Step 2: Convert to fraction form
    73,127.88/109,691.81 = 17,723.88/x
  3. Step 3: Cross multiply
    73,127.88x = 109,691.81 × 17,723.88
  4. Step 4: Simplify right side
    73,127.88x = 1,944,164,477.42
  5. Step 5: Solve for x
    x = 1,944,164,477.42/73,127.88
  6. Step 6: Final answer
    x = 26,585.82

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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.