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Finding the Fourth Proportional to 115,183.45, 158,966.02 and 64,200.84

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Solution

The fourth proportional to 115,183.45, 158,966.02 and 64,200.84 is: 88,604.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,183.45 : 158,966.02 = 64,200.84 : x
  2. Step 2: Convert to fraction form
    115,183.45/158,966.02 = 64,200.84/x
  3. Step 3: Cross multiply
    115,183.45x = 158,966.02 × 64,200.84
  4. Step 4: Simplify right side
    115,183.45x = 10,205,752,015.46
  5. Step 5: Solve for x
    x = 10,205,752,015.46/115,183.45
  6. Step 6: Final answer
    x = 88,604.33

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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.