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Finding the Fourth Proportional to 263,549.88, 363,675.42 and 156,102.57

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Solution

The fourth proportional to 263,549.88, 363,675.42 and 156,102.57 is: 215,407.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,549.88 : 363,675.42 = 156,102.57 : x
  2. Step 2: Convert to fraction form
    263,549.88/363,675.42 = 156,102.57/x
  3. Step 3: Cross multiply
    263,549.88x = 363,675.42 × 156,102.57
  4. Step 4: Simplify right side
    263,549.88x = 56,770,667,707.83
  5. Step 5: Solve for x
    x = 56,770,667,707.83/263,549.88
  6. Step 6: Final answer
    x = 215,407.68

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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.