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Finding the Fourth Proportional to 168,986.64, 233,212.73 and 97,371.20

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Solution

The fourth proportional to 168,986.64, 233,212.73 and 97,371.20 is: 134,378.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,986.64 : 233,212.73 = 97,371.20 : x
  2. Step 2: Convert to fraction form
    168,986.64/233,212.73 = 97,371.20/x
  3. Step 3: Cross multiply
    168,986.64x = 233,212.73 × 97,371.20
  4. Step 4: Simplify right side
    168,986.64x = 22,708,203,375.38
  5. Step 5: Solve for x
    x = 22,708,203,375.38/168,986.64
  6. Step 6: Final answer
    x = 134,378.69

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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.