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Finding the Fourth Proportional to 119,794.60, 179,691.90 and 73,138.60

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Solution

The fourth proportional to 119,794.60, 179,691.90 and 73,138.60 is: 109,707.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,794.60 : 179,691.90 = 73,138.60 : x
  2. Step 2: Convert to fraction form
    119,794.60/179,691.90 = 73,138.60/x
  3. Step 3: Cross multiply
    119,794.60x = 179,691.90 × 73,138.60
  4. Step 4: Simplify right side
    119,794.60x = 13,142,413,997.34
  5. Step 5: Solve for x
    x = 13,142,413,997.34/119,794.60
  6. Step 6: Final answer
    x = 109,707.90

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1.5x scale

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.