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Finding the Fourth Proportional to 253,899.15, 350,221.50 and 163,372.74

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Solution

The fourth proportional to 253,899.15, 350,221.50 and 163,372.74 is: 225,351.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,899.15 : 350,221.50 = 163,372.74 : x
  2. Step 2: Convert to fraction form
    253,899.15/350,221.50 = 163,372.74/x
  3. Step 3: Cross multiply
    253,899.15x = 350,221.50 × 163,372.74
  4. Step 4: Simplify right side
    253,899.15x = 57,216,646,061.91
  5. Step 5: Solve for x
    x = 57,216,646,061.91/253,899.15
  6. Step 6: Final answer
    x = 225,351.86

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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.