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Finding the Fourth Proportional to 119,020.88, 164,248.82 and 68,719.88

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Solution

The fourth proportional to 119,020.88, 164,248.82 and 68,719.88 is: 94,833.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,020.88 : 164,248.82 = 68,719.88 : x
  2. Step 2: Convert to fraction form
    119,020.88/164,248.82 = 68,719.88/x
  3. Step 3: Cross multiply
    119,020.88x = 164,248.82 × 68,719.88
  4. Step 4: Simplify right side
    119,020.88x = 11,287,158,035.70
  5. Step 5: Solve for x
    x = 11,287,158,035.70/119,020.88
  6. Step 6: Final answer
    x = 94,833.43

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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.