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Finding the Fourth Proportional to 96,649.44, 144,987.36 and 90,817.44

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Solution

The fourth proportional to 96,649.44, 144,987.36 and 90,817.44 is: 136,238.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,649.44 : 144,987.36 = 90,817.44 : x
  2. Step 2: Convert to fraction form
    96,649.44/144,987.36 = 90,817.44/x
  3. Step 3: Cross multiply
    96,649.44x = 144,987.36 × 90,817.44
  4. Step 4: Simplify right side
    96,649.44x = 13,167,380,867.56
  5. Step 5: Solve for x
    x = 13,167,380,867.56/96,649.44
  6. Step 6: Final answer
    x = 136,238.56

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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.