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Finding the Fourth Proportional to 127,605.06, 176,105.15 and 73,891.02

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Solution

The fourth proportional to 127,605.06, 176,105.15 and 73,891.02 is: 101,975.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,605.06 : 176,105.15 = 73,891.02 : x
  2. Step 2: Convert to fraction form
    127,605.06/176,105.15 = 73,891.02/x
  3. Step 3: Cross multiply
    127,605.06x = 176,105.15 × 73,891.02
  4. Step 4: Simplify right side
    127,605.06x = 13,012,589,160.75
  5. Step 5: Solve for x
    x = 13,012,589,160.75/127,605.06
  6. Step 6: Final answer
    x = 101,975.50

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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.