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Finding the Fourth Proportional to 106,081.64, 146,396.41 and 58,338.62

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Solution

The fourth proportional to 106,081.64, 146,396.41 and 58,338.62 is: 80,509.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,081.64 : 146,396.41 = 58,338.62 : x
  2. Step 2: Convert to fraction form
    106,081.64/146,396.41 = 58,338.62/x
  3. Step 3: Cross multiply
    106,081.64x = 146,396.41 × 58,338.62
  4. Step 4: Simplify right side
    106,081.64x = 8,540,564,532.35
  5. Step 5: Solve for x
    x = 8,540,564,532.35/106,081.64
  6. Step 6: Final answer
    x = 80,509.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.