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Finding the Fourth Proportional to 199,615.67, 275,470.25 and 127,995.97

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Solution

The fourth proportional to 199,615.67, 275,470.25 and 127,995.97 is: 176,634.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,615.67 : 275,470.25 = 127,995.97 : x
  2. Step 2: Convert to fraction form
    199,615.67/275,470.25 = 127,995.97/x
  3. Step 3: Cross multiply
    199,615.67x = 275,470.25 × 127,995.97
  4. Step 4: Simplify right side
    199,615.67x = 35,259,081,854.89
  5. Step 5: Solve for x
    x = 35,259,081,854.89/199,615.67
  6. Step 6: Final answer
    x = 176,634.84

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1.5x scale

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.