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Finding the Fourth Proportional to 207,677.48, 311,539.43 and 65,542.97

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Solution

The fourth proportional to 207,677.48, 311,539.43 and 65,542.97 is: 98,321.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,677.48 : 311,539.43 = 65,542.97 : x
  2. Step 2: Convert to fraction form
    207,677.48/311,539.43 = 65,542.97/x
  3. Step 3: Cross multiply
    207,677.48x = 311,539.43 × 65,542.97
  4. Step 4: Simplify right side
    207,677.48x = 20,419,220,457.01
  5. Step 5: Solve for x
    x = 20,419,220,457.01/207,677.48
  6. Step 6: Final answer
    x = 98,321.79

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1.5x scale

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.