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Finding the Fourth Proportional to 217,235.20, 325,852.80 and 67,474.30

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Solution

The fourth proportional to 217,235.20, 325,852.80 and 67,474.30 is: 101,211.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,235.20 : 325,852.80 = 67,474.30 : x
  2. Step 2: Convert to fraction form
    217,235.20/325,852.80 = 67,474.30/x
  3. Step 3: Cross multiply
    217,235.20x = 325,852.80 × 67,474.30
  4. Step 4: Simplify right side
    217,235.20x = 21,986,689,583.04
  5. Step 5: Solve for x
    x = 21,986,689,583.04/217,235.20
  6. Step 6: Final answer
    x = 101,211.45

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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.