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Finding the Fourth Proportional to 248,358.85, 342,725.69 and 140,922.47

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Solution

The fourth proportional to 248,358.85, 342,725.69 and 140,922.47 is: 194,467.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,358.85 : 342,725.69 = 140,922.47 : x
  2. Step 2: Convert to fraction form
    248,358.85/342,725.69 = 140,922.47/x
  3. Step 3: Cross multiply
    248,358.85x = 342,725.69 × 140,922.47
  4. Step 4: Simplify right side
    248,358.85x = 48,297,750,767.25
  5. Step 5: Solve for x
    x = 48,297,750,767.25/248,358.85
  6. Step 6: Final answer
    x = 194,467.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.