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Finding the Fourth Proportional to 115,183.43, 158,966.04 and 64,200.81

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Solution

The fourth proportional to 115,183.43, 158,966.04 and 64,200.81 is: 88,604.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,183.43 : 158,966.04 = 64,200.81 : x
  2. Step 2: Convert to fraction form
    115,183.43/158,966.04 = 64,200.81/x
  3. Step 3: Cross multiply
    115,183.43x = 158,966.04 × 64,200.81
  4. Step 4: Simplify right side
    115,183.43x = 10,205,748,530.49
  5. Step 5: Solve for x
    x = 10,205,748,530.49/115,183.43
  6. Step 6: Final answer
    x = 88,604.31

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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.