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Finding the Fourth Proportional to 225,810.99, 338,739.98 and 76,067.91

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Solution

The fourth proportional to 225,810.99, 338,739.98 and 76,067.91 is: 114,109.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,810.99 : 338,739.98 = 76,067.91 : x
  2. Step 2: Convert to fraction form
    225,810.99/338,739.98 = 76,067.91/x
  3. Step 3: Cross multiply
    225,810.99x = 338,739.98 × 76,067.91
  4. Step 4: Simplify right side
    225,810.99x = 25,767,241,931.70
  5. Step 5: Solve for x
    x = 25,767,241,931.70/225,810.99
  6. Step 6: Final answer
    x = 114,109.78

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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.