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Finding the Fourth Proportional to 84,809.20, 127,823.39 and 73,104.24

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Solution

The fourth proportional to 84,809.20, 127,823.39 and 73,104.24 is: 110,181.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,809.20 : 127,823.39 = 73,104.24 : x
  2. Step 2: Convert to fraction form
    84,809.20/127,823.39 = 73,104.24/x
  3. Step 3: Cross multiply
    84,809.20x = 127,823.39 × 73,104.24
  4. Step 4: Simplify right side
    84,809.20x = 9,344,431,780.17
  5. Step 5: Solve for x
    x = 9,344,431,780.17/84,809.20
  6. Step 6: Final answer
    x = 110,181.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.