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Finding the Fourth Proportional to 68,720.80, 94,834.73 and 41,863.31

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Solution

The fourth proportional to 68,720.80, 94,834.73 and 41,863.31 is: 57,771.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,720.80 : 94,834.73 = 41,863.31 : x
  2. Step 2: Convert to fraction form
    68,720.80/94,834.73 = 41,863.31/x
  3. Step 3: Cross multiply
    68,720.80x = 94,834.73 × 41,863.31
  4. Step 4: Simplify right side
    68,720.80x = 3,970,095,648.46
  5. Step 5: Solve for x
    x = 3,970,095,648.46/68,720.80
  6. Step 6: Final answer
    x = 57,771.38

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1.5x scale

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.