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Finding the Fourth Proportional to 89,976.80, 134,768.37 and 58,276.64

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Solution

The fourth proportional to 89,976.80, 134,768.37 and 58,276.64 is: 87,287.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,976.80 : 134,768.37 = 58,276.64 : x
  2. Step 2: Convert to fraction form
    89,976.80/134,768.37 = 58,276.64/x
  3. Step 3: Cross multiply
    89,976.80x = 134,768.37 × 58,276.64
  4. Step 4: Simplify right side
    89,976.80x = 7,853,847,781.88
  5. Step 5: Solve for x
    x = 7,853,847,781.88/89,976.80
  6. Step 6: Final answer
    x = 87,287.48

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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.