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Finding the Fourth Proportional to 136,191.62, 204,478.86 and 69,679.46

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Solution

The fourth proportional to 136,191.62, 204,478.86 and 69,679.46 is: 104,617.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,191.62 : 204,478.86 = 69,679.46 : x
  2. Step 2: Convert to fraction form
    136,191.62/204,478.86 = 69,679.46/x
  3. Step 3: Cross multiply
    136,191.62x = 204,478.86 × 69,679.46
  4. Step 4: Simplify right side
    136,191.62x = 14,247,976,546.22
  5. Step 5: Solve for x
    x = 14,247,976,546.22/136,191.62
  6. Step 6: Final answer
    x = 104,617.13

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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.