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Finding the Fourth Proportional to 248,736.59, 343,311.90 and 158,074.88

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Solution

The fourth proportional to 248,736.59, 343,311.90 and 158,074.88 is: 218,178.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,736.59 : 343,311.90 = 158,074.88 : x
  2. Step 2: Convert to fraction form
    248,736.59/343,311.90 = 158,074.88/x
  3. Step 3: Cross multiply
    248,736.59x = 343,311.90 × 158,074.88
  4. Step 4: Simplify right side
    248,736.59x = 54,268,987,395.07
  5. Step 5: Solve for x
    x = 54,268,987,395.07/248,736.59
  6. Step 6: Final answer
    x = 218,178.55

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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.