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Finding the Fourth Proportional to 201,186.70, 301,780.05 and 68,071.30

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Solution

The fourth proportional to 201,186.70, 301,780.05 and 68,071.30 is: 102,106.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,186.70 : 301,780.05 = 68,071.30 : x
  2. Step 2: Convert to fraction form
    201,186.70/301,780.05 = 68,071.30/x
  3. Step 3: Cross multiply
    201,186.70x = 301,780.05 × 68,071.30
  4. Step 4: Simplify right side
    201,186.70x = 20,542,560,317.57
  5. Step 5: Solve for x
    x = 20,542,560,317.57/201,186.70
  6. Step 6: Final answer
    x = 102,106.95

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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.