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Finding the Fourth Proportional to 432,081.20, 648,121.80 and 182,763.20

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Solution

The fourth proportional to 432,081.20, 648,121.80 and 182,763.20 is: 274,144.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,081.20 : 648,121.80 = 182,763.20 : x
  2. Step 2: Convert to fraction form
    432,081.20/648,121.80 = 182,763.20/x
  3. Step 3: Cross multiply
    432,081.20x = 648,121.80 × 182,763.20
  4. Step 4: Simplify right side
    432,081.20x = 118,452,814,157.76
  5. Step 5: Solve for x
    x = 118,452,814,157.76/432,081.20
  6. Step 6: Final answer
    x = 274,144.80

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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.