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Finding the Fourth Proportional to 231,251.88, 346,881.66 and 81,493.98

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Solution

The fourth proportional to 231,251.88, 346,881.66 and 81,493.98 is: 122,242.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,251.88 : 346,881.66 = 81,493.98 : x
  2. Step 2: Convert to fraction form
    231,251.88/346,881.66 = 81,493.98/x
  3. Step 3: Cross multiply
    231,251.88x = 346,881.66 × 81,493.98
  4. Step 4: Simplify right side
    231,251.88x = 28,268,767,062.41
  5. Step 5: Solve for x
    x = 28,268,767,062.41/231,251.88
  6. Step 6: Final answer
    x = 122,242.32

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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.