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Finding the Fourth Proportional to 238,087.80, 356,879.70 and 88,231.80

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Solution

The fourth proportional to 238,087.80, 356,879.70 and 88,231.80 is: 132,254.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,087.80 : 356,879.70 = 88,231.80 : x
  2. Step 2: Convert to fraction form
    238,087.80/356,879.70 = 88,231.80/x
  3. Step 3: Cross multiply
    238,087.80x = 356,879.70 × 88,231.80
  4. Step 4: Simplify right side
    238,087.80x = 31,488,138,314.46
  5. Step 5: Solve for x
    x = 31,488,138,314.46/238,087.80
  6. Step 6: Final answer
    x = 132,254.31

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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.