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Finding the Fourth Proportional to 71,400.52, 98,531.04 and 41,185.90

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Solution

The fourth proportional to 71,400.52, 98,531.04 and 41,185.90 is: 56,835.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,400.52 : 98,531.04 = 41,185.90 : x
  2. Step 2: Convert to fraction form
    71,400.52/98,531.04 = 41,185.90/x
  3. Step 3: Cross multiply
    71,400.52x = 98,531.04 × 41,185.90
  4. Step 4: Simplify right side
    71,400.52x = 4,058,089,560.34
  5. Step 5: Solve for x
    x = 4,058,089,560.34/71,400.52
  6. Step 6: Final answer
    x = 56,835.57

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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.