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Finding the Fourth Proportional to 182,398.66, 251,815.20 and 121,227.79

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Solution

The fourth proportional to 182,398.66, 251,815.20 and 121,227.79 is: 167,364.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,398.66 : 251,815.20 = 121,227.79 : x
  2. Step 2: Convert to fraction form
    182,398.66/251,815.20 = 121,227.79/x
  3. Step 3: Cross multiply
    182,398.66x = 251,815.20 × 121,227.79
  4. Step 4: Simplify right side
    182,398.66x = 30,527,000,184.41
  5. Step 5: Solve for x
    x = 30,527,000,184.41/182,398.66
  6. Step 6: Final answer
    x = 167,364.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.