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Finding the Fourth Proportional to 368,168.28, 552,187.62 and 98,299.78

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Solution

The fourth proportional to 368,168.28, 552,187.62 and 98,299.78 is: 147,432.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,168.28 : 552,187.62 = 98,299.78 : x
  2. Step 2: Convert to fraction form
    368,168.28/552,187.62 = 98,299.78/x
  3. Step 3: Cross multiply
    368,168.28x = 552,187.62 × 98,299.78
  4. Step 4: Simplify right side
    368,168.28x = 54,279,921,564.72
  5. Step 5: Solve for x
    x = 54,279,921,564.72/368,168.28
  6. Step 6: Final answer
    x = 147,432.37

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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.