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Finding the Fourth Proportional to 110,954.89, 153,109.47 and 63,198.91

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Solution

The fourth proportional to 110,954.89, 153,109.47 and 63,198.91 is: 87,209.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,954.89 : 153,109.47 = 63,198.91 : x
  2. Step 2: Convert to fraction form
    110,954.89/153,109.47 = 63,198.91/x
  3. Step 3: Cross multiply
    110,954.89x = 153,109.47 × 63,198.91
  4. Step 4: Simplify right side
    110,954.89x = 9,676,351,614.68
  5. Step 5: Solve for x
    x = 9,676,351,614.68/110,954.89
  6. Step 6: Final answer
    x = 87,209.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.