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Finding the Fourth Proportional to 127,517.44, 175,979.52 and 73,804.80

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Solution

The fourth proportional to 127,517.44, 175,979.52 and 73,804.80 is: 101,853.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,517.44 : 175,979.52 = 73,804.80 : x
  2. Step 2: Convert to fraction form
    127,517.44/175,979.52 = 73,804.80/x
  3. Step 3: Cross multiply
    127,517.44x = 175,979.52 × 73,804.80
  4. Step 4: Simplify right side
    127,517.44x = 12,988,133,277.70
  5. Step 5: Solve for x
    x = 12,988,133,277.70/127,517.44
  6. Step 6: Final answer
    x = 101,853.78

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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.