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Finding the Fourth Proportional to 482,002.80, 722,874.60 and 145,042.80

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Solution

The fourth proportional to 482,002.80, 722,874.60 and 145,042.80 is: 217,525.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,002.80 : 722,874.60 = 145,042.80 : x
  2. Step 2: Convert to fraction form
    482,002.80/722,874.60 = 145,042.80/x
  3. Step 3: Cross multiply
    482,002.80x = 722,874.60 × 145,042.80
  4. Step 4: Simplify right side
    482,002.80x = 104,847,756,032.88
  5. Step 5: Solve for x
    x = 104,847,756,032.88/482,002.80
  6. Step 6: Final answer
    x = 217,525.20

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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.