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Finding the Fourth Proportional to 201,698.10, 302,255.55 and 89,286.30

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Solution

The fourth proportional to 201,698.10, 302,255.55 and 89,286.30 is: 133,800.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,698.10 : 302,255.55 = 89,286.30 : x
  2. Step 2: Convert to fraction form
    201,698.10/302,255.55 = 89,286.30/x
  3. Step 3: Cross multiply
    201,698.10x = 302,255.55 × 89,286.30
  4. Step 4: Simplify right side
    201,698.10x = 26,987,279,713.97
  5. Step 5: Solve for x
    x = 26,987,279,713.97/201,698.10
  6. Step 6: Final answer
    x = 133,800.37

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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.