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Finding the Fourth Proportional to 269,620.20, 404,235.90 and 176,178.60

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Solution

The fourth proportional to 269,620.20, 404,235.90 and 176,178.60 is: 264,140.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,620.20 : 404,235.90 = 176,178.60 : x
  2. Step 2: Convert to fraction form
    269,620.20/404,235.90 = 176,178.60/x
  3. Step 3: Cross multiply
    269,620.20x = 404,235.90 × 176,178.60
  4. Step 4: Simplify right side
    269,620.20x = 71,217,714,931.74
  5. Step 5: Solve for x
    x = 71,217,714,931.74/269,620.20
  6. Step 6: Final answer
    x = 264,140.87

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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.