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Finding the Fourth Proportional to 213,993.33, 320,989.22 and 64,232.97

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Solution

The fourth proportional to 213,993.33, 320,989.22 and 64,232.97 is: 96,349.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,993.33 : 320,989.22 = 64,232.97 : x
  2. Step 2: Convert to fraction form
    213,993.33/320,989.22 = 64,232.97/x
  3. Step 3: Cross multiply
    213,993.33x = 320,989.22 × 64,232.97
  4. Step 4: Simplify right side
    213,993.33x = 20,618,091,099.17
  5. Step 5: Solve for x
    x = 20,618,091,099.17/213,993.33
  6. Step 6: Final answer
    x = 96,349.22

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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.