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Finding the Fourth Proportional to 216,982.96, 325,505.22 and 67,235.02

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Solution

The fourth proportional to 216,982.96, 325,505.22 and 67,235.02 is: 100,862.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,982.96 : 325,505.22 = 67,235.02 : x
  2. Step 2: Convert to fraction form
    216,982.96/325,505.22 = 67,235.02/x
  3. Step 3: Cross multiply
    216,982.96x = 325,505.22 × 67,235.02
  4. Step 4: Simplify right side
    216,982.96x = 21,885,349,976.80
  5. Step 5: Solve for x
    x = 21,885,349,976.80/216,982.96
  6. Step 6: Final answer
    x = 100,862.07

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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.