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Finding the Fourth Proportional to 109,279.56, 150,809.52 and 63,961.76

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Solution

The fourth proportional to 109,279.56, 150,809.52 and 63,961.76 is: 88,269.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,279.56 : 150,809.52 = 63,961.76 : x
  2. Step 2: Convert to fraction form
    109,279.56/150,809.52 = 63,961.76/x
  3. Step 3: Cross multiply
    109,279.56x = 150,809.52 × 63,961.76
  4. Step 4: Simplify right side
    109,279.56x = 9,646,042,323.96
  5. Step 5: Solve for x
    x = 9,646,042,323.96/109,279.56
  6. Step 6: Final answer
    x = 88,269.41

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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.