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Finding the Fourth Proportional to 115,543.66, 159,451.36 and 67,797.82

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Solution

The fourth proportional to 115,543.66, 159,451.36 and 67,797.82 is: 93,561.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,543.66 : 159,451.36 = 67,797.82 : x
  2. Step 2: Convert to fraction form
    115,543.66/159,451.36 = 67,797.82/x
  3. Step 3: Cross multiply
    115,543.66x = 159,451.36 × 67,797.82
  4. Step 4: Simplify right side
    115,543.66x = 10,810,454,604.04
  5. Step 5: Solve for x
    x = 10,810,454,604.04/115,543.66
  6. Step 6: Final answer
    x = 93,561.64

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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.