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Finding the Fourth Proportional to 127,356.98, 175,698.11 and 79,527.29

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Solution

The fourth proportional to 127,356.98, 175,698.11 and 79,527.29 is: 109,713.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,356.98 : 175,698.11 = 79,527.29 : x
  2. Step 2: Convert to fraction form
    127,356.98/175,698.11 = 79,527.29/x
  3. Step 3: Cross multiply
    127,356.98x = 175,698.11 × 79,527.29
  4. Step 4: Simplify right side
    127,356.98x = 13,972,793,866.75
  5. Step 5: Solve for x
    x = 13,972,793,866.75/127,356.98
  6. Step 6: Final answer
    x = 109,713.61

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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.