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Finding the Fourth Proportional to 99,790.93, 149,710.31 and 33,231.65

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Solution

The fourth proportional to 99,790.93, 149,710.31 and 33,231.65 is: 49,855.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,790.93 : 149,710.31 = 33,231.65 : x
  2. Step 2: Convert to fraction form
    99,790.93/149,710.31 = 33,231.65/x
  3. Step 3: Cross multiply
    99,790.93x = 149,710.31 × 33,231.65
  4. Step 4: Simplify right side
    99,790.93x = 4,975,120,623.31
  5. Step 5: Solve for x
    x = 4,975,120,623.31/99,790.93
  6. Step 6: Final answer
    x = 49,855.44

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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.