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Finding the Fourth Proportional to 89,491.80, 134,529.30 and 63,377.40

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Solution

The fourth proportional to 89,491.80, 134,529.30 and 63,377.40 is: 95,272.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,491.80 : 134,529.30 = 63,377.40 : x
  2. Step 2: Convert to fraction form
    89,491.80/134,529.30 = 63,377.40/x
  3. Step 3: Cross multiply
    89,491.80x = 134,529.30 × 63,377.40
  4. Step 4: Simplify right side
    89,491.80x = 8,526,117,257.82
  5. Step 5: Solve for x
    x = 8,526,117,257.82/89,491.80
  6. Step 6: Final answer
    x = 95,272.61

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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.