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Finding the Fourth Proportional to 252,572.88, 378,817.08 and 92,615.76

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Solution

The fourth proportional to 252,572.88, 378,817.08 and 92,615.76 is: 138,908.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,572.88 : 378,817.08 = 92,615.76 : x
  2. Step 2: Convert to fraction form
    252,572.88/378,817.08 = 92,615.76/x
  3. Step 3: Cross multiply
    252,572.88x = 378,817.08 × 92,615.76
  4. Step 4: Simplify right side
    252,572.88x = 35,084,431,765.18
  5. Step 5: Solve for x
    x = 35,084,431,765.18/252,572.88
  6. Step 6: Final answer
    x = 138,908.15

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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.