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Finding the Fourth Proportional to 136,689.60, 205,034.40 and 134,846.40

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Solution

The fourth proportional to 136,689.60, 205,034.40 and 134,846.40 is: 202,269.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,689.60 : 205,034.40 = 134,846.40 : x
  2. Step 2: Convert to fraction form
    136,689.60/205,034.40 = 134,846.40/x
  3. Step 3: Cross multiply
    136,689.60x = 205,034.40 × 134,846.40
  4. Step 4: Simplify right side
    136,689.60x = 27,648,150,716.16
  5. Step 5: Solve for x
    x = 27,648,150,716.16/136,689.60
  6. Step 6: Final answer
    x = 202,269.60

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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.