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Finding the Fourth Proportional to 254,305.86, 350,939.43 and 141,129.42

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Solution

The fourth proportional to 254,305.86, 350,939.43 and 141,129.42 is: 194,757.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,305.86 : 350,939.43 = 141,129.42 : x
  2. Step 2: Convert to fraction form
    254,305.86/350,939.43 = 141,129.42/x
  3. Step 3: Cross multiply
    254,305.86x = 350,939.43 × 141,129.42
  4. Step 4: Simplify right side
    254,305.86x = 49,527,878,211.03
  5. Step 5: Solve for x
    x = 49,527,878,211.03/254,305.86
  6. Step 6: Final answer
    x = 194,757.13

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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.