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Finding the Fourth Proportional to 253,051.35, 379,447.92 and 84,510.96

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Solution

The fourth proportional to 253,051.35, 379,447.92 and 84,510.96 is: 126,723.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,051.35 : 379,447.92 = 84,510.96 : x
  2. Step 2: Convert to fraction form
    253,051.35/379,447.92 = 84,510.96/x
  3. Step 3: Cross multiply
    253,051.35x = 379,447.92 × 84,510.96
  4. Step 4: Simplify right side
    253,051.35x = 32,067,507,989.20
  5. Step 5: Solve for x
    x = 32,067,507,989.20/253,051.35
  6. Step 6: Final answer
    x = 126,723.32

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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.