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Finding the Fourth Proportional to 217,075.95, 325,496.88 and 67,251.87

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Solution

The fourth proportional to 217,075.95, 325,496.88 and 67,251.87 is: 100,841.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,075.95 : 325,496.88 = 67,251.87 : x
  2. Step 2: Convert to fraction form
    217,075.95/325,496.88 = 67,251.87/x
  3. Step 3: Cross multiply
    217,075.95x = 325,496.88 × 67,251.87
  4. Step 4: Simplify right side
    217,075.95x = 21,890,273,859.17
  5. Step 5: Solve for x
    x = 21,890,273,859.17/217,075.95
  6. Step 6: Final answer
    x = 100,841.54

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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.