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Finding the Fourth Proportional to 115,663.32, 159,616.62 and 67,917.24

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Solution

The fourth proportional to 115,663.32, 159,616.62 and 67,917.24 is: 93,726.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,663.32 : 159,616.62 = 67,917.24 : x
  2. Step 2: Convert to fraction form
    115,663.32/159,616.62 = 67,917.24/x
  3. Step 3: Cross multiply
    115,663.32x = 159,616.62 × 67,917.24
  4. Step 4: Simplify right side
    115,663.32x = 10,840,720,288.53
  5. Step 5: Solve for x
    x = 10,840,720,288.53/115,663.32
  6. Step 6: Final answer
    x = 93,726.52

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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.