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Finding the Fourth Proportional to 239,938.97, 360,126.56 and 127,713.06

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Solution

The fourth proportional to 239,938.97, 360,126.56 and 127,713.06 is: 191,685.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,938.97 : 360,126.56 = 127,713.06 : x
  2. Step 2: Convert to fraction form
    239,938.97/360,126.56 = 127,713.06/x
  3. Step 3: Cross multiply
    239,938.97x = 360,126.56 × 127,713.06
  4. Step 4: Simplify right side
    239,938.97x = 45,992,865,284.16
  5. Step 5: Solve for x
    x = 45,992,865,284.16/239,938.97
  6. Step 6: Final answer
    x = 191,685.69

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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.