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Finding the Fourth Proportional to 266,471.12, 367,725.72 and 145,609.82

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Solution

The fourth proportional to 266,471.12, 367,725.72 and 145,609.82 is: 200,939.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,471.12 : 367,725.72 = 145,609.82 : x
  2. Step 2: Convert to fraction form
    266,471.12/367,725.72 = 145,609.82/x
  3. Step 3: Cross multiply
    266,471.12x = 367,725.72 × 145,609.82
  4. Step 4: Simplify right side
    266,471.12x = 53,544,475,898.57
  5. Step 5: Solve for x
    x = 53,544,475,898.57/266,471.12
  6. Step 6: Final answer
    x = 200,939.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.