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Finding the Fourth Proportional to 216,758.14, 325,168.26 and 67,011.46

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Solution

The fourth proportional to 216,758.14, 325,168.26 and 67,011.46 is: 100,526.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,758.14 : 325,168.26 = 67,011.46 : x
  2. Step 2: Convert to fraction form
    216,758.14/325,168.26 = 67,011.46/x
  3. Step 3: Cross multiply
    216,758.14x = 325,168.26 × 67,011.46
  4. Step 4: Simplify right side
    216,758.14x = 21,789,999,848.26
  5. Step 5: Solve for x
    x = 21,789,999,848.26/216,758.14
  6. Step 6: Final answer
    x = 100,526.79

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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.