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Finding the Fourth Proportional to 61,359.81, 84,656.19 and 50,009.82

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Solution

The fourth proportional to 61,359.81, 84,656.19 and 50,009.82 is: 68,996.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,359.81 : 84,656.19 = 50,009.82 : x
  2. Step 2: Convert to fraction form
    61,359.81/84,656.19 = 50,009.82/x
  3. Step 3: Cross multiply
    61,359.81x = 84,656.19 × 50,009.82
  4. Step 4: Simplify right side
    61,359.81x = 4,233,640,823.79
  5. Step 5: Solve for x
    x = 4,233,640,823.79/61,359.81
  6. Step 6: Final answer
    x = 68,996.97

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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.