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Finding the Fourth Proportional to 61,358.81, 84,654.81 and 50,008.82

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Solution

The fourth proportional to 61,358.81, 84,654.81 and 50,008.82 is: 68,995.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,358.81 : 84,654.81 = 50,008.82 : x
  2. Step 2: Convert to fraction form
    61,358.81/84,654.81 = 50,008.82/x
  3. Step 3: Cross multiply
    61,358.81x = 84,654.81 × 50,008.82
  4. Step 4: Simplify right side
    61,358.81x = 4,233,486,732.15
  5. Step 5: Solve for x
    x = 4,233,486,732.15/61,358.81
  6. Step 6: Final answer
    x = 68,995.59

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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.