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Finding the Fourth Proportional to 209,629.99, 314,400.88 and 67,487.97

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Solution

The fourth proportional to 209,629.99, 314,400.88 and 67,487.97 is: 101,217.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,629.99 : 314,400.88 = 67,487.97 : x
  2. Step 2: Convert to fraction form
    209,629.99/314,400.88 = 67,487.97/x
  3. Step 3: Cross multiply
    209,629.99x = 314,400.88 × 67,487.97
  4. Step 4: Simplify right side
    209,629.99x = 21,218,276,819.97
  5. Step 5: Solve for x
    x = 21,218,276,819.97/209,629.99
  6. Step 6: Final answer
    x = 101,217.76

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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.