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Finding the Fourth Proportional to 151,007.90, 226,686.83 and 81,023.90

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Solution

The fourth proportional to 151,007.90, 226,686.83 and 81,023.90 is: 121,629.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,007.90 : 226,686.83 = 81,023.90 : x
  2. Step 2: Convert to fraction form
    151,007.90/226,686.83 = 81,023.90/x
  3. Step 3: Cross multiply
    151,007.90x = 226,686.83 × 81,023.90
  4. Step 4: Simplify right side
    151,007.90x = 18,367,049,506.68
  5. Step 5: Solve for x
    x = 18,367,049,506.68/151,007.90
  6. Step 6: Final answer
    x = 121,629.73

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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.