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Finding the Fourth Proportional to 71,861.33, 98,450.49 and 69,167.80

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Solution

The fourth proportional to 71,861.33, 98,450.49 and 69,167.80 is: 94,760.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,861.33 : 98,450.49 = 69,167.80 : x
  2. Step 2: Convert to fraction form
    71,861.33/98,450.49 = 69,167.80/x
  3. Step 3: Cross multiply
    71,861.33x = 98,450.49 × 69,167.80
  4. Step 4: Simplify right side
    71,861.33x = 6,809,603,802.22
  5. Step 5: Solve for x
    x = 6,809,603,802.22/71,861.33
  6. Step 6: Final answer
    x = 94,760.34

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1.5x scale

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.