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Finding the Fourth Proportional to 269,668.44, 372,139.92 and 148,810.80

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Solution

The fourth proportional to 269,668.44, 372,139.92 and 148,810.80 is: 205,357.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,668.44 : 372,139.92 = 148,810.80 : x
  2. Step 2: Convert to fraction form
    269,668.44/372,139.92 = 148,810.80/x
  3. Step 3: Cross multiply
    269,668.44x = 372,139.92 × 148,810.80
  4. Step 4: Simplify right side
    269,668.44x = 55,378,439,207.14
  5. Step 5: Solve for x
    x = 55,378,439,207.14/269,668.44
  6. Step 6: Final answer
    x = 205,357.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.