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Finding the Fourth Proportional to 216,983.96, 325,506.72 and 67,236.02

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Solution

The fourth proportional to 216,983.96, 325,506.72 and 67,236.02 is: 100,863.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,983.96 : 325,506.72 = 67,236.02 : x
  2. Step 2: Convert to fraction form
    216,983.96/325,506.72 = 67,236.02/x
  3. Step 3: Cross multiply
    216,983.96x = 325,506.72 × 67,236.02
  4. Step 4: Simplify right side
    216,983.96x = 21,885,776,336.05
  5. Step 5: Solve for x
    x = 21,885,776,336.05/216,983.96
  6. Step 6: Final answer
    x = 100,863.57

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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.