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Finding the Fourth Proportional to 220,626.03, 330,648.33 and 87,433.68

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Solution

The fourth proportional to 220,626.03, 330,648.33 and 87,433.68 is: 131,035.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,626.03 : 330,648.33 = 87,433.68 : x
  2. Step 2: Convert to fraction form
    220,626.03/330,648.33 = 87,433.68/x
  3. Step 3: Cross multiply
    220,626.03x = 330,648.33 × 87,433.68
  4. Step 4: Simplify right side
    220,626.03x = 28,909,800,277.75
  5. Step 5: Solve for x
    x = 28,909,800,277.75/220,626.03
  6. Step 6: Final answer
    x = 131,035.31

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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.