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Finding the Fourth Proportional to 109,074.60, 150,472.41 and 63,754.50

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Solution

The fourth proportional to 109,074.60, 150,472.41 and 63,754.50 is: 87,951.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,074.60 : 150,472.41 = 63,754.50 : x
  2. Step 2: Convert to fraction form
    109,074.60/150,472.41 = 63,754.50/x
  3. Step 3: Cross multiply
    109,074.60x = 150,472.41 × 63,754.50
  4. Step 4: Simplify right side
    109,074.60x = 9,593,293,263.35
  5. Step 5: Solve for x
    x = 9,593,293,263.35/109,074.60
  6. Step 6: Final answer
    x = 87,951.67

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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.