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Finding the Fourth Proportional to 99,679.15, 149,493.05 and 29,542.06

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Solution

The fourth proportional to 99,679.15, 149,493.05 and 29,542.06 is: 44,305.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,679.15 : 149,493.05 = 29,542.06 : x
  2. Step 2: Convert to fraction form
    99,679.15/149,493.05 = 29,542.06/x
  3. Step 3: Cross multiply
    99,679.15x = 149,493.05 × 29,542.06
  4. Step 4: Simplify right side
    99,679.15x = 4,416,331,757.51
  5. Step 5: Solve for x
    x = 4,416,331,757.51/99,679.15
  6. Step 6: Final answer
    x = 44,305.47

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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.