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Finding the Fourth Proportional to 266,933.61, 400,121.46 and 89,294.49

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Solution

The fourth proportional to 266,933.61, 400,121.46 and 89,294.49 is: 133,848.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,933.61 : 400,121.46 = 89,294.49 : x
  2. Step 2: Convert to fraction form
    266,933.61/400,121.46 = 89,294.49/x
  3. Step 3: Cross multiply
    266,933.61x = 400,121.46 × 89,294.49
  4. Step 4: Simplify right side
    266,933.61x = 35,728,641,708.76
  5. Step 5: Solve for x
    x = 35,728,641,708.76/266,933.61
  6. Step 6: Final answer
    x = 133,848.42

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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.