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Finding the Fourth Proportional to 216,590.80, 324,959.96 and 116,760.64

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Solution

The fourth proportional to 216,590.80, 324,959.96 and 116,760.64 is: 175,180.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,590.80 : 324,959.96 = 116,760.64 : x
  2. Step 2: Convert to fraction form
    216,590.80/324,959.96 = 116,760.64/x
  3. Step 3: Cross multiply
    216,590.80x = 324,959.96 × 116,760.64
  4. Step 4: Simplify right side
    216,590.80x = 37,942,532,903.97
  5. Step 5: Solve for x
    x = 37,942,532,903.97/216,590.80
  6. Step 6: Final answer
    x = 175,180.72

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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.