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Finding the Fourth Proportional to 216,794.88, 325,159.92 and 74,662.56

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Solution

The fourth proportional to 216,794.88, 325,159.92 and 74,662.56 is: 111,982.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,794.88 : 325,159.92 = 74,662.56 : x
  2. Step 2: Convert to fraction form
    216,794.88/325,159.92 = 74,662.56/x
  3. Step 3: Cross multiply
    216,794.88x = 325,159.92 × 74,662.56
  4. Step 4: Simplify right side
    216,794.88x = 24,277,272,036.60
  5. Step 5: Solve for x
    x = 24,277,272,036.60/216,794.88
  6. Step 6: Final answer
    x = 111,982.68

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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.