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Finding the Fourth Proportional to 89,077.64, 122,896.64 and 50,809.68

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Solution

The fourth proportional to 89,077.64, 122,896.64 and 50,809.68 is: 70,099.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,077.64 : 122,896.64 = 50,809.68 : x
  2. Step 2: Convert to fraction form
    89,077.64/122,896.64 = 50,809.68/x
  3. Step 3: Cross multiply
    89,077.64x = 122,896.64 × 50,809.68
  4. Step 4: Simplify right side
    89,077.64x = 6,244,338,951.48
  5. Step 5: Solve for x
    x = 6,244,338,951.48/89,077.64
  6. Step 6: Final answer
    x = 70,099.96

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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.