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Finding the Fourth Proportional to 136,622.70, 204,934.05 and 92,007.90

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Solution

The fourth proportional to 136,622.70, 204,934.05 and 92,007.90 is: 138,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,622.70 : 204,934.05 = 92,007.90 : x
  2. Step 2: Convert to fraction form
    136,622.70/204,934.05 = 92,007.90/x
  3. Step 3: Cross multiply
    136,622.70x = 204,934.05 × 92,007.90
  4. Step 4: Simplify right side
    136,622.70x = 18,855,551,579.00
  5. Step 5: Solve for x
    x = 18,855,551,579.00/136,622.70
  6. Step 6: Final answer
    x = 138,011.85

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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.