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Finding the Fourth Proportional to 368,170.28, 552,190.62 and 98,301.78

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Solution

The fourth proportional to 368,170.28, 552,190.62 and 98,301.78 is: 147,435.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,170.28 : 552,190.62 = 98,301.78 : x
  2. Step 2: Convert to fraction form
    368,170.28/552,190.62 = 98,301.78/x
  3. Step 3: Cross multiply
    368,170.28x = 552,190.62 × 98,301.78
  4. Step 4: Simplify right side
    368,170.28x = 54,281,320,845.30
  5. Step 5: Solve for x
    x = 54,281,320,845.30/368,170.28
  6. Step 6: Final answer
    x = 147,435.37

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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.