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Finding the Fourth Proportional to 158,997.44, 219,403.68 and 91,933.76

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Solution

The fourth proportional to 158,997.44, 219,403.68 and 91,933.76 is: 126,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,997.44 : 219,403.68 = 91,933.76 : x
  2. Step 2: Convert to fraction form
    158,997.44/219,403.68 = 91,933.76/x
  3. Step 3: Cross multiply
    158,997.44x = 219,403.68 × 91,933.76
  4. Step 4: Simplify right side
    158,997.44x = 20,170,605,260.24
  5. Step 5: Solve for x
    x = 20,170,605,260.24/158,997.44
  6. Step 6: Final answer
    x = 126,861.20

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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.