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Finding the Fourth Proportional to 119,910.41, 165,472.03 and 66,194.27

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Solution

The fourth proportional to 119,910.41, 165,472.03 and 66,194.27 is: 91,345.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,910.41 : 165,472.03 = 66,194.27 : x
  2. Step 2: Convert to fraction form
    119,910.41/165,472.03 = 66,194.27/x
  3. Step 3: Cross multiply
    119,910.41x = 165,472.03 × 66,194.27
  4. Step 4: Simplify right side
    119,910.41x = 10,953,300,479.46
  5. Step 5: Solve for x
    x = 10,953,300,479.46/119,910.41
  6. Step 6: Final answer
    x = 91,345.70

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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.