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Finding the Fourth Proportional to 120,634.92, 180,867.60 and 53,134.92

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Solution

The fourth proportional to 120,634.92, 180,867.60 and 53,134.92 is: 79,665.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,634.92 : 180,867.60 = 53,134.92 : x
  2. Step 2: Convert to fraction form
    120,634.92/180,867.60 = 53,134.92/x
  3. Step 3: Cross multiply
    120,634.92x = 180,867.60 × 53,134.92
  4. Step 4: Simplify right side
    120,634.92x = 9,610,385,456.59
  5. Step 5: Solve for x
    x = 9,610,385,456.59/120,634.92
  6. Step 6: Final answer
    x = 79,665.04

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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.