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Finding the Fourth Proportional to 120,247.68, 165,956.22 and 69,946.68

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Solution

The fourth proportional to 120,247.68, 165,956.22 and 69,946.68 is: 96,534.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,247.68 : 165,956.22 = 69,946.68 : x
  2. Step 2: Convert to fraction form
    120,247.68/165,956.22 = 69,946.68/x
  3. Step 3: Cross multiply
    120,247.68x = 165,956.22 × 69,946.68
  4. Step 4: Simplify right side
    120,247.68x = 11,608,086,614.35
  5. Step 5: Solve for x
    x = 11,608,086,614.35/120,247.68
  6. Step 6: Final answer
    x = 96,534.81

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1.5x scale

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.