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Finding the Fourth Proportional to 71,195.28, 98,245.56 and 39,362.28

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Solution

The fourth proportional to 71,195.28, 98,245.56 and 39,362.28 is: 54,317.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,195.28 : 98,245.56 = 39,362.28 : x
  2. Step 2: Convert to fraction form
    71,195.28/98,245.56 = 39,362.28/x
  3. Step 3: Cross multiply
    71,195.28x = 98,245.56 × 39,362.28
  4. Step 4: Simplify right side
    71,195.28x = 3,867,169,241.48
  5. Step 5: Solve for x
    x = 3,867,169,241.48/71,195.28
  6. Step 6: Final answer
    x = 54,317.78

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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.