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Finding the Fourth Proportional to 61,991.50, 93,324.61 and 56,480.26

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Solution

The fourth proportional to 61,991.50, 93,324.61 and 56,480.26 is: 85,027.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,991.50 : 93,324.61 = 56,480.26 : x
  2. Step 2: Convert to fraction form
    61,991.50/93,324.61 = 56,480.26/x
  3. Step 3: Cross multiply
    61,991.50x = 93,324.61 × 56,480.26
  4. Step 4: Simplify right side
    61,991.50x = 5,270,998,237.20
  5. Step 5: Solve for x
    x = 5,270,998,237.20/61,991.50
  6. Step 6: Final answer
    x = 85,027.76

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.