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Finding the Fourth Proportional to 61,677.79, 85,115.42 and 33,383.41

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Solution

The fourth proportional to 61,677.79, 85,115.42 and 33,383.41 is: 46,069.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,677.79 : 85,115.42 = 33,383.41 : x
  2. Step 2: Convert to fraction form
    61,677.79/85,115.42 = 33,383.41/x
  3. Step 3: Cross multiply
    61,677.79x = 85,115.42 × 33,383.41
  4. Step 4: Simplify right side
    61,677.79x = 2,841,442,963.18
  5. Step 5: Solve for x
    x = 2,841,442,963.18/61,677.79
  6. Step 6: Final answer
    x = 46,069.14

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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.