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Finding the Fourth Proportional to 99,771.80, 149,682.30 and 29,651.10

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Solution

The fourth proportional to 99,771.80, 149,682.30 and 29,651.10 is: 44,483.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,771.80 : 149,682.30 = 29,651.10 : x
  2. Step 2: Convert to fraction form
    99,771.80/149,682.30 = 29,651.10/x
  3. Step 3: Cross multiply
    99,771.80x = 149,682.30 × 29,651.10
  4. Step 4: Simplify right side
    99,771.80x = 4,438,244,845.53
  5. Step 5: Solve for x
    x = 4,438,244,845.53/99,771.80
  6. Step 6: Final answer
    x = 44,483.96

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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.