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Finding the Fourth Proportional to 325,213.74, 487,849.77 and 88,557.66

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Solution

The fourth proportional to 325,213.74, 487,849.77 and 88,557.66 is: 132,844.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,213.74 : 487,849.77 = 88,557.66 : x
  2. Step 2: Convert to fraction form
    325,213.74/487,849.77 = 88,557.66/x
  3. Step 3: Cross multiply
    325,213.74x = 487,849.77 × 88,557.66
  4. Step 4: Simplify right side
    325,213.74x = 43,202,834,062.74
  5. Step 5: Solve for x
    x = 43,202,834,062.74/325,213.74
  6. Step 6: Final answer
    x = 132,844.43

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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.