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Finding the Fourth Proportional to 482,940.40, 724,410.60 and 167,429.20

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Solution

The fourth proportional to 482,940.40, 724,410.60 and 167,429.20 is: 251,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,940.40 : 724,410.60 = 167,429.20 : x
  2. Step 2: Convert to fraction form
    482,940.40/724,410.60 = 167,429.20/x
  3. Step 3: Cross multiply
    482,940.40x = 724,410.60 × 167,429.20
  4. Step 4: Simplify right side
    482,940.40x = 121,287,487,229.52
  5. Step 5: Solve for x
    x = 121,287,487,229.52/482,940.40
  6. Step 6: Final answer
    x = 251,143.80

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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.