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Finding the Fourth Proportional to 119,951.66, 165,534.63 and 66,236.60

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Solution

The fourth proportional to 119,951.66, 165,534.63 and 66,236.60 is: 91,407.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,951.66 : 165,534.63 = 66,236.60 : x
  2. Step 2: Convert to fraction form
    119,951.66/165,534.63 = 66,236.60/x
  3. Step 3: Cross multiply
    119,951.66x = 165,534.63 × 66,236.60
  4. Step 4: Simplify right side
    119,951.66x = 10,964,451,073.46
  5. Step 5: Solve for x
    x = 10,964,451,073.46/119,951.66
  6. Step 6: Final answer
    x = 91,407.25

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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.