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Finding the Fourth Proportional to 216,932.64, 325,358.82 and 67,144.98

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Solution

The fourth proportional to 216,932.64, 325,358.82 and 67,144.98 is: 100,705.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,932.64 : 325,358.82 = 67,144.98 : x
  2. Step 2: Convert to fraction form
    216,932.64/325,358.82 = 67,144.98/x
  3. Step 3: Cross multiply
    216,932.64x = 325,358.82 × 67,144.98
  4. Step 4: Simplify right side
    216,932.64x = 21,846,211,461.72
  5. Step 5: Solve for x
    x = 21,846,211,461.72/216,932.64
  6. Step 6: Final answer
    x = 100,705.05

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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.