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Finding the Fourth Proportional to 64,398.78, 88,825.41 and 62,231.22

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Solution

The fourth proportional to 64,398.78, 88,825.41 and 62,231.22 is: 85,835.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,398.78 : 88,825.41 = 62,231.22 : x
  2. Step 2: Convert to fraction form
    64,398.78/88,825.41 = 62,231.22/x
  3. Step 3: Cross multiply
    64,398.78x = 88,825.41 × 62,231.22
  4. Step 4: Simplify right side
    64,398.78x = 5,527,713,631.30
  5. Step 5: Solve for x
    x = 5,527,713,631.30/64,398.78
  6. Step 6: Final answer
    x = 85,835.69

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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.