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Finding the Fourth Proportional to 368,454.56, 552,778.43 and 115,724.84

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Solution

The fourth proportional to 368,454.56, 552,778.43 and 115,724.84 is: 173,617.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,454.56 : 552,778.43 = 115,724.84 : x
  2. Step 2: Convert to fraction form
    368,454.56/552,778.43 = 115,724.84/x
  3. Step 3: Cross multiply
    368,454.56x = 552,778.43 × 115,724.84
  4. Step 4: Simplify right side
    368,454.56x = 63,970,192,024.68
  5. Step 5: Solve for x
    x = 63,970,192,024.68/368,454.56
  6. Step 6: Final answer
    x = 173,617.59

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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.