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Finding the Fourth Proportional to 61,324.80, 91,792.80 and 43,828.80

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Solution

The fourth proportional to 61,324.80, 91,792.80 and 43,828.80 is: 65,604.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,324.80 : 91,792.80 = 43,828.80 : x
  2. Step 2: Convert to fraction form
    61,324.80/91,792.80 = 43,828.80/x
  3. Step 3: Cross multiply
    61,324.80x = 91,792.80 × 43,828.80
  4. Step 4: Simplify right side
    61,324.80x = 4,023,168,272.64
  5. Step 5: Solve for x
    x = 4,023,168,272.64/61,324.80
  6. Step 6: Final answer
    x = 65,604.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.