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Finding the Fourth Proportional to 248,751.72, 343,286.64 and 141,339.96

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Solution

The fourth proportional to 248,751.72, 343,286.64 and 141,339.96 is: 195,054.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,751.72 : 343,286.64 = 141,339.96 : x
  2. Step 2: Convert to fraction form
    248,751.72/343,286.64 = 141,339.96/x
  3. Step 3: Cross multiply
    248,751.72x = 343,286.64 × 141,339.96
  4. Step 4: Simplify right side
    248,751.72x = 48,520,119,966.13
  5. Step 5: Solve for x
    x = 48,520,119,966.13/248,751.72
  6. Step 6: Final answer
    x = 195,054.41

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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.