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Finding the Fourth Proportional to 201,062.20, 301,763.40 and 82,818.40

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Solution

The fourth proportional to 201,062.20, 301,763.40 and 82,818.40 is: 124,297.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,062.20 : 301,763.40 = 82,818.40 : x
  2. Step 2: Convert to fraction form
    201,062.20/301,763.40 = 82,818.40/x
  3. Step 3: Cross multiply
    201,062.20x = 301,763.40 × 82,818.40
  4. Step 4: Simplify right side
    201,062.20x = 24,991,561,966.56
  5. Step 5: Solve for x
    x = 24,991,561,966.56/201,062.20
  6. Step 6: Final answer
    x = 124,297.66

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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.