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Finding the Fourth Proportional to 266,925.72, 400,388.80 and 67,244.42

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Solution

The fourth proportional to 266,925.72, 400,388.80 and 67,244.42 is: 100,866.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,925.72 : 400,388.80 = 67,244.42 : x
  2. Step 2: Convert to fraction form
    266,925.72/400,388.80 = 67,244.42/x
  3. Step 3: Cross multiply
    266,925.72x = 400,388.80 × 67,244.42
  4. Step 4: Simplify right side
    266,925.72x = 26,923,912,630.50
  5. Step 5: Solve for x
    x = 26,923,912,630.50/266,925.72
  6. Step 6: Final answer
    x = 100,866.69

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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.