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Finding the Fourth Proportional to 200,375.48, 300,450.63 and 137,266.76

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Solution

The fourth proportional to 200,375.48, 300,450.63 and 137,266.76 is: 205,823.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,375.48 : 300,450.63 = 137,266.76 : x
  2. Step 2: Convert to fraction form
    200,375.48/300,450.63 = 137,266.76/x
  3. Step 3: Cross multiply
    200,375.48x = 300,450.63 × 137,266.76
  4. Step 4: Simplify right side
    200,375.48x = 41,241,885,785.94
  5. Step 5: Solve for x
    x = 41,241,885,785.94/200,375.48
  6. Step 6: Final answer
    x = 205,823.01

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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.