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Finding the Fourth Proportional to 218,648.88, 327,627.90 and 165,087.36

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Solution

The fourth proportional to 218,648.88, 327,627.90 and 165,087.36 is: 247,370.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,648.88 : 327,627.90 = 165,087.36 : x
  2. Step 2: Convert to fraction form
    218,648.88/327,627.90 = 165,087.36/x
  3. Step 3: Cross multiply
    218,648.88x = 327,627.90 × 165,087.36
  4. Step 4: Simplify right side
    218,648.88x = 54,087,225,073.34
  5. Step 5: Solve for x
    x = 54,087,225,073.34/218,648.88
  6. Step 6: Final answer
    x = 247,370.24

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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.