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Finding the Fourth Proportional to 266,613.90, 400,093.65 and 154,293.90

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Solution

The fourth proportional to 266,613.90, 400,093.65 and 154,293.90 is: 231,540.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,613.90 : 400,093.65 = 154,293.90 : x
  2. Step 2: Convert to fraction form
    266,613.90/400,093.65 = 154,293.90/x
  3. Step 3: Cross multiply
    266,613.90x = 400,093.65 × 154,293.90
  4. Step 4: Simplify right side
    266,613.90x = 61,732,009,623.74
  5. Step 5: Solve for x
    x = 61,732,009,623.74/266,613.90
  6. Step 6: Final answer
    x = 231,540.85

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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.