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Finding the Fourth Proportional to 165,372.77, 247,773.86 and 90,546.77

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Solution

The fourth proportional to 165,372.77, 247,773.86 and 90,546.77 is: 135,663.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,372.77 : 247,773.86 = 90,546.77 : x
  2. Step 2: Convert to fraction form
    165,372.77/247,773.86 = 90,546.77/x
  3. Step 3: Cross multiply
    165,372.77x = 247,773.86 × 90,546.77
  4. Step 4: Simplify right side
    165,372.77x = 22,435,122,260.70
  5. Step 5: Solve for x
    x = 22,435,122,260.70/165,372.77
  6. Step 6: Final answer
    x = 135,663.94

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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.