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Finding the Fourth Proportional to 115,186.67, 158,959.19 and 64,197.98

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Solution

The fourth proportional to 115,186.67, 158,959.19 and 64,197.98 is: 88,594.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,186.67 : 158,959.19 = 64,197.98 : x
  2. Step 2: Convert to fraction form
    115,186.67/158,959.19 = 64,197.98/x
  3. Step 3: Cross multiply
    115,186.67x = 158,959.19 × 64,197.98
  4. Step 4: Simplify right side
    115,186.67x = 10,204,858,900.44
  5. Step 5: Solve for x
    x = 10,204,858,900.44/115,186.67
  6. Step 6: Final answer
    x = 88,594.10

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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.