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Finding the Fourth Proportional to 105,628.92, 158,443.21 and 35,557.44

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Solution

The fourth proportional to 105,628.92, 158,443.21 and 35,557.44 is: 53,336.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,628.92 : 158,443.21 = 35,557.44 : x
  2. Step 2: Convert to fraction form
    105,628.92/158,443.21 = 35,557.44/x
  3. Step 3: Cross multiply
    105,628.92x = 158,443.21 × 35,557.44
  4. Step 4: Simplify right side
    105,628.92x = 5,633,834,932.98
  5. Step 5: Solve for x
    x = 5,633,834,932.98/105,628.92
  6. Step 6: Final answer
    x = 53,336.10

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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.