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Finding the Fourth Proportional to 136,502.65, 204,261.90 and 92,215.90

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Solution

The fourth proportional to 136,502.65, 204,261.90 and 92,215.90 is: 137,991.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,502.65 : 204,261.90 = 92,215.90 : x
  2. Step 2: Convert to fraction form
    136,502.65/204,261.90 = 92,215.90/x
  3. Step 3: Cross multiply
    136,502.65x = 204,261.90 × 92,215.90
  4. Step 4: Simplify right side
    136,502.65x = 18,836,194,944.21
  5. Step 5: Solve for x
    x = 18,836,194,944.21/136,502.65
  6. Step 6: Final answer
    x = 137,991.42

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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.