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Finding the Fourth Proportional to 87,059.98, 130,586.31 and 27,894.34

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Solution

The fourth proportional to 87,059.98, 130,586.31 and 27,894.34 is: 41,840.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,059.98 : 130,586.31 = 27,894.34 : x
  2. Step 2: Convert to fraction form
    87,059.98/130,586.31 = 27,894.34/x
  3. Step 3: Cross multiply
    87,059.98x = 130,586.31 × 27,894.34
  4. Step 4: Simplify right side
    87,059.98x = 3,642,618,930.49
  5. Step 5: Solve for x
    x = 3,642,618,930.49/87,059.98
  6. Step 6: Final answer
    x = 41,840.34

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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.