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Finding the Fourth Proportional to 71,291.25, 98,370.90 and 41,070.66

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Solution

The fourth proportional to 71,291.25, 98,370.90 and 41,070.66 is: 56,671.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,291.25 : 98,370.90 = 41,070.66 : x
  2. Step 2: Convert to fraction form
    71,291.25/98,370.90 = 41,070.66/x
  3. Step 3: Cross multiply
    71,291.25x = 98,370.90 × 41,070.66
  4. Step 4: Simplify right side
    71,291.25x = 4,040,157,787.79
  5. Step 5: Solve for x
    x = 4,040,157,787.79/71,291.25
  6. Step 6: Final answer
    x = 56,671.16

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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.