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Finding the Fourth Proportional to 395,269.92, 592,915.44 and 129,046.56

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Solution

The fourth proportional to 395,269.92, 592,915.44 and 129,046.56 is: 193,573.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,269.92 : 592,915.44 = 129,046.56 : x
  2. Step 2: Convert to fraction form
    395,269.92/592,915.44 = 129,046.56/x
  3. Step 3: Cross multiply
    395,269.92x = 592,915.44 × 129,046.56
  4. Step 4: Simplify right side
    395,269.92x = 76,513,697,902.89
  5. Step 5: Solve for x
    x = 76,513,697,902.89/395,269.92
  6. Step 6: Final answer
    x = 193,573.29

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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.