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Finding the Fourth Proportional to 119,872.71, 165,397.95 and 68,881.59

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Solution

The fourth proportional to 119,872.71, 165,397.95 and 68,881.59 is: 95,041.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,872.71 : 165,397.95 = 68,881.59 : x
  2. Step 2: Convert to fraction form
    119,872.71/165,397.95 = 68,881.59/x
  3. Step 3: Cross multiply
    119,872.71x = 165,397.95 × 68,881.59
  4. Step 4: Simplify right side
    119,872.71x = 11,392,873,778.74
  5. Step 5: Solve for x
    x = 11,392,873,778.74/119,872.71
  6. Step 6: Final answer
    x = 95,041.43

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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.