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Finding the Fourth Proportional to 354,686.75, 532,015.22 and 165,081.89

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Solution

The fourth proportional to 354,686.75, 532,015.22 and 165,081.89 is: 247,615.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,686.75 : 532,015.22 = 165,081.89 : x
  2. Step 2: Convert to fraction form
    354,686.75/532,015.22 = 165,081.89/x
  3. Step 3: Cross multiply
    354,686.75x = 532,015.22 × 165,081.89
  4. Step 4: Simplify right side
    354,686.75x = 87,826,077,200.96
  5. Step 5: Solve for x
    x = 87,826,077,200.96/354,686.75
  6. Step 6: Final answer
    x = 247,615.90

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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.