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Finding the Fourth Proportional to 195,912.46, 270,052.14 and 127,809.28

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Solution

The fourth proportional to 195,912.46, 270,052.14 and 127,809.28 is: 176,176.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,912.46 : 270,052.14 = 127,809.28 : x
  2. Step 2: Convert to fraction form
    195,912.46/270,052.14 = 127,809.28/x
  3. Step 3: Cross multiply
    195,912.46x = 270,052.14 × 127,809.28
  4. Step 4: Simplify right side
    195,912.46x = 34,515,169,575.86
  5. Step 5: Solve for x
    x = 34,515,169,575.86/195,912.46
  6. Step 6: Final answer
    x = 176,176.49

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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.