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Finding the Fourth Proportional to 73,279.66, 109,936.80 and 58,343.26

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Solution

The fourth proportional to 73,279.66, 109,936.80 and 58,343.26 is: 87,528.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,279.66 : 109,936.80 = 58,343.26 : x
  2. Step 2: Convert to fraction form
    73,279.66/109,936.80 = 58,343.26/x
  3. Step 3: Cross multiply
    73,279.66x = 109,936.80 × 58,343.26
  4. Step 4: Simplify right side
    73,279.66x = 6,414,071,305.97
  5. Step 5: Solve for x
    x = 6,414,071,305.97/73,279.66
  6. Step 6: Final answer
    x = 87,528.67

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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.