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Finding the Fourth Proportional to 200,359.08, 300,649.32 and 111,662.55

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Solution

The fourth proportional to 200,359.08, 300,649.32 and 111,662.55 is: 167,555.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,359.08 : 300,649.32 = 111,662.55 : x
  2. Step 2: Convert to fraction form
    200,359.08/300,649.32 = 111,662.55/x
  3. Step 3: Cross multiply
    200,359.08x = 300,649.32 × 111,662.55
  4. Step 4: Simplify right side
    200,359.08x = 33,571,269,726.97
  5. Step 5: Solve for x
    x = 33,571,269,726.97/200,359.08
  6. Step 6: Final answer
    x = 167,555.52

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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.