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Finding the Fourth Proportional to 247,372.67, 371,119.46 and 78,893.01

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Solution

The fourth proportional to 247,372.67, 371,119.46 and 78,893.01 is: 118,358.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,372.67 : 371,119.46 = 78,893.01 : x
  2. Step 2: Convert to fraction form
    247,372.67/371,119.46 = 78,893.01/x
  3. Step 3: Cross multiply
    247,372.67x = 371,119.46 × 78,893.01
  4. Step 4: Simplify right side
    247,372.67x = 29,278,730,874.51
  5. Step 5: Solve for x
    x = 29,278,730,874.51/247,372.67
  6. Step 6: Final answer
    x = 118,358.79

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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.