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Finding the Fourth Proportional to 266,694.60, 400,031.19 and 146,988.84

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Solution

The fourth proportional to 266,694.60, 400,031.19 and 146,988.84 is: 220,477.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,694.60 : 400,031.19 = 146,988.84 : x
  2. Step 2: Convert to fraction form
    266,694.60/400,031.19 = 146,988.84/x
  3. Step 3: Cross multiply
    266,694.60x = 400,031.19 × 146,988.84
  4. Step 4: Simplify right side
    266,694.60x = 58,800,120,581.92
  5. Step 5: Solve for x
    x = 58,800,120,581.92/266,694.60
  6. Step 6: Final answer
    x = 220,477.36

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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.