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Finding the Fourth Proportional to 482,940.30, 724,507.65 and 167,331.90

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Solution

The fourth proportional to 482,940.30, 724,507.65 and 167,331.90 is: 251,031.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,940.30 : 724,507.65 = 167,331.90 : x
  2. Step 2: Convert to fraction form
    482,940.30/724,507.65 = 167,331.90/x
  3. Step 3: Cross multiply
    482,940.30x = 724,507.65 × 167,331.90
  4. Step 4: Simplify right side
    482,940.30x = 121,233,241,639.04
  5. Step 5: Solve for x
    x = 121,233,241,639.04/482,940.30
  6. Step 6: Final answer
    x = 251,031.53

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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.