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Finding the Fourth Proportional to 253,551.31, 379,766.35 and 173,399.32

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Solution

The fourth proportional to 253,551.31, 379,766.35 and 173,399.32 is: 259,715.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,551.31 : 379,766.35 = 173,399.32 : x
  2. Step 2: Convert to fraction form
    253,551.31/379,766.35 = 173,399.32/x
  3. Step 3: Cross multiply
    253,551.31x = 379,766.35 × 173,399.32
  4. Step 4: Simplify right side
    253,551.31x = 65,851,227,540.34
  5. Step 5: Solve for x
    x = 65,851,227,540.34/253,551.31
  6. Step 6: Final answer
    x = 259,715.59

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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.