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Finding the Fourth Proportional to 217,271.70, 325,907.55 and 67,510.80

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Solution

The fourth proportional to 217,271.70, 325,907.55 and 67,510.80 is: 101,266.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,271.70 : 325,907.55 = 67,510.80 : x
  2. Step 2: Convert to fraction form
    217,271.70/325,907.55 = 67,510.80/x
  3. Step 3: Cross multiply
    217,271.70x = 325,907.55 × 67,510.80
  4. Step 4: Simplify right side
    217,271.70x = 22,002,279,426.54
  5. Step 5: Solve for x
    x = 22,002,279,426.54/217,271.70
  6. Step 6: Final answer
    x = 101,266.20

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1.5x scale

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.