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Finding the Fourth Proportional to 216,932.57, 325,608.76 and 104,691.80

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Solution

The fourth proportional to 216,932.57, 325,608.76 and 104,691.80 is: 157,139.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,932.57 : 325,608.76 = 104,691.80 : x
  2. Step 2: Convert to fraction form
    216,932.57/325,608.76 = 104,691.80/x
  3. Step 3: Cross multiply
    216,932.57x = 325,608.76 × 104,691.80
  4. Step 4: Simplify right side
    216,932.57x = 34,088,567,180.17
  5. Step 5: Solve for x
    x = 34,088,567,180.17/216,932.57
  6. Step 6: Final answer
    x = 157,139.00

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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.