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Finding the Fourth Proportional to 189,144.82, 283,784.99 and 81,028.83

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Solution

The fourth proportional to 189,144.82, 283,784.99 and 81,028.83 is: 121,572.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,144.82 : 283,784.99 = 81,028.83 : x
  2. Step 2: Convert to fraction form
    189,144.82/283,784.99 = 81,028.83/x
  3. Step 3: Cross multiply
    189,144.82x = 283,784.99 × 81,028.83
  4. Step 4: Simplify right side
    189,144.82x = 22,994,765,711.26
  5. Step 5: Solve for x
    x = 22,994,765,711.26/189,144.82
  6. Step 6: Final answer
    x = 121,572.27

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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.