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Finding the Fourth Proportional to 99,279.36, 148,922.88 and 29,157.12

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Solution

The fourth proportional to 99,279.36, 148,922.88 and 29,157.12 is: 43,736.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,279.36 : 148,922.88 = 29,157.12 : x
  2. Step 2: Convert to fraction form
    99,279.36/148,922.88 = 29,157.12/x
  3. Step 3: Cross multiply
    99,279.36x = 148,922.88 × 29,157.12
  4. Step 4: Simplify right side
    99,279.36x = 4,342,162,282.91
  5. Step 5: Solve for x
    x = 4,342,162,282.91/99,279.36
  6. Step 6: Final answer
    x = 43,736.81

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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.