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Finding the Fourth Proportional to 248,994.75, 343,613.85 and 135,819.93

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Solution

The fourth proportional to 248,994.75, 343,613.85 and 135,819.93 is: 187,432.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,994.75 : 343,613.85 = 135,819.93 : x
  2. Step 2: Convert to fraction form
    248,994.75/343,613.85 = 135,819.93/x
  3. Step 3: Cross multiply
    248,994.75x = 343,613.85 × 135,819.93
  4. Step 4: Simplify right side
    248,994.75x = 46,669,609,833.26
  5. Step 5: Solve for x
    x = 46,669,609,833.26/248,994.75
  6. Step 6: Final answer
    x = 187,432.10

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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.