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Finding the Fourth Proportional to 266,941.62, 400,133.46 and 89,302.50

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Solution

The fourth proportional to 266,941.62, 400,133.46 and 89,302.50 is: 133,860.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,941.62 : 400,133.46 = 89,302.50 : x
  2. Step 2: Convert to fraction form
    266,941.62/400,133.46 = 89,302.50/x
  3. Step 3: Cross multiply
    266,941.62x = 400,133.46 × 89,302.50
  4. Step 4: Simplify right side
    266,941.62x = 35,732,918,311.65
  5. Step 5: Solve for x
    x = 35,732,918,311.65/266,941.62
  6. Step 6: Final answer
    x = 133,860.42

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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.