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Finding the Fourth Proportional to 226,320.40, 339,739.80 and 132,878.80

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Solution

The fourth proportional to 226,320.40, 339,739.80 and 132,878.80 is: 199,470.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,320.40 : 339,739.80 = 132,878.80 : x
  2. Step 2: Convert to fraction form
    226,320.40/339,739.80 = 132,878.80/x
  3. Step 3: Cross multiply
    226,320.40x = 339,739.80 × 132,878.80
  4. Step 4: Simplify right side
    226,320.40x = 45,144,216,936.24
  5. Step 5: Solve for x
    x = 45,144,216,936.24/226,320.40
  6. Step 6: Final answer
    x = 199,470.38

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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.