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Finding the Fourth Proportional to 432,906.80, 649,360.20 and 117,363.20

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Solution

The fourth proportional to 432,906.80, 649,360.20 and 117,363.20 is: 176,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,906.80 : 649,360.20 = 117,363.20 : x
  2. Step 2: Convert to fraction form
    432,906.80/649,360.20 = 117,363.20/x
  3. Step 3: Cross multiply
    432,906.80x = 649,360.20 × 117,363.20
  4. Step 4: Simplify right side
    432,906.80x = 76,210,991,024.64
  5. Step 5: Solve for x
    x = 76,210,991,024.64/432,906.80
  6. Step 6: Final answer
    x = 176,044.80

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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.