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Finding the Fourth Proportional to 84,919.60, 127,380.60 and 32,331.96

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Solution

The fourth proportional to 84,919.60, 127,380.60 and 32,331.96 is: 48,498.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,919.60 : 127,380.60 = 32,331.96 : x
  2. Step 2: Convert to fraction form
    84,919.60/127,380.60 = 32,331.96/x
  3. Step 3: Cross multiply
    84,919.60x = 127,380.60 × 32,331.96
  4. Step 4: Simplify right side
    84,919.60x = 4,118,464,463.98
  5. Step 5: Solve for x
    x = 4,118,464,463.98/84,919.60
  6. Step 6: Final answer
    x = 48,498.40

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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.