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Finding the Fourth Proportional to 217,321.92, 326,028.96 and 67,558.56

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Solution

The fourth proportional to 217,321.92, 326,028.96 and 67,558.56 is: 101,352.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,321.92 : 326,028.96 = 67,558.56 : x
  2. Step 2: Convert to fraction form
    217,321.92/326,028.96 = 67,558.56/x
  3. Step 3: Cross multiply
    217,321.92x = 326,028.96 × 67,558.56
  4. Step 4: Simplify right side
    217,321.92x = 22,026,047,055.90
  5. Step 5: Solve for x
    x = 22,026,047,055.90/217,321.92
  6. Step 6: Final answer
    x = 101,352.16

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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.