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Finding the Fourth Proportional to 119,691.68, 179,222.88 and 109,194.08

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Solution

The fourth proportional to 119,691.68, 179,222.88 and 109,194.08 is: 163,504.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,691.68 : 179,222.88 = 109,194.08 : x
  2. Step 2: Convert to fraction form
    119,691.68/179,222.88 = 109,194.08/x
  3. Step 3: Cross multiply
    119,691.68x = 179,222.88 × 109,194.08
  4. Step 4: Simplify right side
    119,691.68x = 19,570,077,496.55
  5. Step 5: Solve for x
    x = 19,570,077,496.55/119,691.68
  6. Step 6: Final answer
    x = 163,504.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.