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Finding the Fourth Proportional to 393,026.92, 589,047.10 and 168,122.92

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Solution

The fourth proportional to 393,026.92, 589,047.10 and 168,122.92 is: 251,973.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,026.92 : 589,047.10 = 168,122.92 : x
  2. Step 2: Convert to fraction form
    393,026.92/589,047.10 = 168,122.92/x
  3. Step 3: Cross multiply
    393,026.92x = 589,047.10 × 168,122.92
  4. Step 4: Simplify right side
    393,026.92x = 99,032,318,469.53
  5. Step 5: Solve for x
    x = 99,032,318,469.53/393,026.92
  6. Step 6: Final answer
    x = 251,973.37

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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.