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Finding the Fourth Proportional to 217,079.68, 325,232.88 and 132,798.64

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Solution

The fourth proportional to 217,079.68, 325,232.88 and 132,798.64 is: 198,961.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,079.68 : 325,232.88 = 132,798.64 : x
  2. Step 2: Convert to fraction form
    217,079.68/325,232.88 = 132,798.64/x
  3. Step 3: Cross multiply
    217,079.68x = 325,232.88 × 132,798.64
  4. Step 4: Simplify right side
    217,079.68x = 43,190,484,147.28
  5. Step 5: Solve for x
    x = 43,190,484,147.28/217,079.68
  6. Step 6: Final answer
    x = 198,961.43

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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.