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Finding the Fourth Proportional to 115,463.36, 159,343.92 and 65,162.24

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Solution

The fourth proportional to 115,463.36, 159,343.92 and 65,162.24 is: 89,926.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,463.36 : 159,343.92 = 65,162.24 : x
  2. Step 2: Convert to fraction form
    115,463.36/159,343.92 = 65,162.24/x
  3. Step 3: Cross multiply
    115,463.36x = 159,343.92 × 65,162.24
  4. Step 4: Simplify right side
    115,463.36x = 10,383,206,757.58
  5. Step 5: Solve for x
    x = 10,383,206,757.58/115,463.36
  6. Step 6: Final answer
    x = 89,926.42

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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.