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Finding the Fourth Proportional to 86,495.33, 129,731.85 and 27,336.98

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Solution

The fourth proportional to 86,495.33, 129,731.85 and 27,336.98 is: 41,001.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,495.33 : 129,731.85 = 27,336.98 : x
  2. Step 2: Convert to fraction form
    86,495.33/129,731.85 = 27,336.98/x
  3. Step 3: Cross multiply
    86,495.33x = 129,731.85 × 27,336.98
  4. Step 4: Simplify right side
    86,495.33x = 3,546,476,340.15
  5. Step 5: Solve for x
    x = 3,546,476,340.15/86,495.33
  6. Step 6: Final answer
    x = 41,001.94

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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.