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Finding the Fourth Proportional to 81,376.52, 112,183.99 and 59,828.22

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Solution

The fourth proportional to 81,376.52, 112,183.99 and 59,828.22 is: 82,477.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,376.52 : 112,183.99 = 59,828.22 : x
  2. Step 2: Convert to fraction form
    81,376.52/112,183.99 = 59,828.22/x
  3. Step 3: Cross multiply
    81,376.52x = 112,183.99 × 59,828.22
  4. Step 4: Simplify right side
    81,376.52x = 6,711,768,284.63
  5. Step 5: Solve for x
    x = 6,711,768,284.63/81,376.52
  6. Step 6: Final answer
    x = 82,477.95

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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.