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Finding the Fourth Proportional to 89,079.82, 122,845.32 and 53,264.02

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Solution

The fourth proportional to 89,079.82, 122,845.32 and 53,264.02 is: 73,453.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,079.82 : 122,845.32 = 53,264.02 : x
  2. Step 2: Convert to fraction form
    89,079.82/122,845.32 = 53,264.02/x
  3. Step 3: Cross multiply
    89,079.82x = 122,845.32 × 53,264.02
  4. Step 4: Simplify right side
    89,079.82x = 6,543,235,581.39
  5. Step 5: Solve for x
    x = 6,543,235,581.39/89,079.82
  6. Step 6: Final answer
    x = 73,453.62

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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.