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Finding the Fourth Proportional to 197,393.88, 295,959.30 and 108,689.16

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Solution

The fourth proportional to 197,393.88, 295,959.30 and 108,689.16 is: 162,961.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,393.88 : 295,959.30 = 108,689.16 : x
  2. Step 2: Convert to fraction form
    197,393.88/295,959.30 = 108,689.16/x
  3. Step 3: Cross multiply
    197,393.88x = 295,959.30 × 108,689.16
  4. Step 4: Simplify right side
    197,393.88x = 32,167,567,711.19
  5. Step 5: Solve for x
    x = 32,167,567,711.19/197,393.88
  6. Step 6: Final answer
    x = 162,961.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.