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Finding the Fourth Proportional to 68,201.34, 94,085.25 and 52,989.90

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Solution

The fourth proportional to 68,201.34, 94,085.25 and 52,989.90 is: 73,100.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,201.34 : 94,085.25 = 52,989.90 : x
  2. Step 2: Convert to fraction form
    68,201.34/94,085.25 = 52,989.90/x
  3. Step 3: Cross multiply
    68,201.34x = 94,085.25 × 52,989.90
  4. Step 4: Simplify right side
    68,201.34x = 4,985,567,962.87
  5. Step 5: Solve for x
    x = 4,985,567,962.87/68,201.34
  6. Step 6: Final answer
    x = 73,100.73

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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.