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Finding the Fourth Proportional to 251,447.12, 347,160.84 and 156,093.92

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Solution

The fourth proportional to 251,447.12, 347,160.84 and 156,093.92 is: 215,511.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,447.12 : 347,160.84 = 156,093.92 : x
  2. Step 2: Convert to fraction form
    251,447.12/347,160.84 = 156,093.92/x
  3. Step 3: Cross multiply
    251,447.12x = 347,160.84 × 156,093.92
  4. Step 4: Simplify right side
    251,447.12x = 54,189,696,386.09
  5. Step 5: Solve for x
    x = 54,189,696,386.09/251,447.12
  6. Step 6: Final answer
    x = 215,511.30

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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.