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Finding the Fourth Proportional to 61,512.51, 84,333.64 and 60,391.50

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Solution

The fourth proportional to 61,512.51, 84,333.64 and 60,391.50 is: 82,796.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,512.51 : 84,333.64 = 60,391.50 : x
  2. Step 2: Convert to fraction form
    61,512.51/84,333.64 = 60,391.50/x
  3. Step 3: Cross multiply
    61,512.51x = 84,333.64 × 60,391.50
  4. Step 4: Simplify right side
    61,512.51x = 5,093,035,140.44
  5. Step 5: Solve for x
    x = 5,093,035,140.44/61,512.51
  6. Step 6: Final answer
    x = 82,796.74

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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.