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Finding the Fourth Proportional to 64,761.82, 88,724.02 and 62,334.90

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Solution

The fourth proportional to 64,761.82, 88,724.02 and 62,334.90 is: 85,399.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,761.82 : 88,724.02 = 62,334.90 : x
  2. Step 2: Convert to fraction form
    64,761.82/88,724.02 = 62,334.90/x
  3. Step 3: Cross multiply
    64,761.82x = 88,724.02 × 62,334.90
  4. Step 4: Simplify right side
    64,761.82x = 5,530,602,914.30
  5. Step 5: Solve for x
    x = 5,530,602,914.30/64,761.82
  6. Step 6: Final answer
    x = 85,399.13

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.