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Finding the Fourth Proportional to 109,378.44, 150,866.82 and 83,950.92

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Solution

The fourth proportional to 109,378.44, 150,866.82 and 83,950.92 is: 115,794.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,378.44 : 150,866.82 = 83,950.92 : x
  2. Step 2: Convert to fraction form
    109,378.44/150,866.82 = 83,950.92/x
  3. Step 3: Cross multiply
    109,378.44x = 150,866.82 × 83,950.92
  4. Step 4: Simplify right side
    109,378.44x = 12,665,408,336.47
  5. Step 5: Solve for x
    x = 12,665,408,336.47/109,378.44
  6. Step 6: Final answer
    x = 115,794.38

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1.5x scale

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.