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Finding the Fourth Proportional to 99,773.80, 149,682.30 and 29,660.20

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Solution

The fourth proportional to 99,773.80, 149,682.30 and 29,660.20 is: 44,496.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,773.80 : 149,682.30 = 29,660.20 : x
  2. Step 2: Convert to fraction form
    99,773.80/149,682.30 = 29,660.20/x
  3. Step 3: Cross multiply
    99,773.80x = 149,682.30 × 29,660.20
  4. Step 4: Simplify right side
    99,773.80x = 4,439,606,954.46
  5. Step 5: Solve for x
    x = 4,439,606,954.46/99,773.80
  6. Step 6: Final answer
    x = 44,496.72

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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.