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Finding the Fourth Proportional to 74,493.44, 111,740.15 and 52,405.65

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Solution

The fourth proportional to 74,493.44, 111,740.15 and 52,405.65 is: 78,608.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,493.44 : 111,740.15 = 52,405.65 : x
  2. Step 2: Convert to fraction form
    74,493.44/111,740.15 = 52,405.65/x
  3. Step 3: Cross multiply
    74,493.44x = 111,740.15 × 52,405.65
  4. Step 4: Simplify right side
    74,493.44x = 5,855,815,191.85
  5. Step 5: Solve for x
    x = 5,855,815,191.85/74,493.44
  6. Step 6: Final answer
    x = 78,608.47

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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.