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Finding the Fourth Proportional to 87,627, 120,925.26 and 47,883

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Solution

The fourth proportional to 87,627, 120,925.26 and 47,883 is: 66,078.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,627 : 120,925.26 = 47,883 : x
  2. Step 2: Convert to fraction form
    87,627/120,925.26 = 47,883/x
  3. Step 3: Cross multiply
    87,627x = 120,925.26 × 47,883
  4. Step 4: Simplify right side
    87,627x = 5,790,264,224.58
  5. Step 5: Solve for x
    x = 5,790,264,224.58/87,627
  6. Step 6: Final answer
    x = 66,078.54

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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.