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Finding the Fourth Proportional to 200,555.74, 300,538.23 and 111,687.13

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Solution

The fourth proportional to 200,555.74, 300,538.23 and 111,687.13 is: 167,366.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,555.74 : 300,538.23 = 111,687.13 : x
  2. Step 2: Convert to fraction form
    200,555.74/300,538.23 = 111,687.13/x
  3. Step 3: Cross multiply
    200,555.74x = 300,538.23 × 111,687.13
  4. Step 4: Simplify right side
    200,555.74x = 33,566,252,363.98
  5. Step 5: Solve for x
    x = 33,566,252,363.98/200,555.74
  6. Step 6: Final answer
    x = 167,366.20

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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.