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Finding the Fourth Proportional to 253,554.21, 380,524.13 and 93,781.31

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Solution

The fourth proportional to 253,554.21, 380,524.13 and 93,781.31 is: 140,743.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,554.21 : 380,524.13 = 93,781.31 : x
  2. Step 2: Convert to fraction form
    253,554.21/380,524.13 = 93,781.31/x
  3. Step 3: Cross multiply
    253,554.21x = 380,524.13 × 93,781.31
  4. Step 4: Simplify right side
    253,554.21x = 35,686,049,378.16
  5. Step 5: Solve for x
    x = 35,686,049,378.16/253,554.21
  6. Step 6: Final answer
    x = 140,743.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.