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Finding the Fourth Proportional to 136,701.40, 205,052.10 and 131,452.60

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Solution

The fourth proportional to 136,701.40, 205,052.10 and 131,452.60 is: 197,178.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,701.40 : 205,052.10 = 131,452.60 : x
  2. Step 2: Convert to fraction form
    136,701.40/205,052.10 = 131,452.60/x
  3. Step 3: Cross multiply
    136,701.40x = 205,052.10 × 131,452.60
  4. Step 4: Simplify right side
    136,701.40x = 26,954,631,680.46
  5. Step 5: Solve for x
    x = 26,954,631,680.46/136,701.40
  6. Step 6: Final answer
    x = 197,178.90

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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.