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Finding the Fourth Proportional to 68,907.43, 103,273.03 and 59,986.32

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Solution

The fourth proportional to 68,907.43, 103,273.03 and 59,986.32 is: 89,902.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,907.43 : 103,273.03 = 59,986.32 : x
  2. Step 2: Convert to fraction form
    68,907.43/103,273.03 = 59,986.32/x
  3. Step 3: Cross multiply
    68,907.43x = 103,273.03 × 59,986.32
  4. Step 4: Simplify right side
    68,907.43x = 6,194,969,024.95
  5. Step 5: Solve for x
    x = 6,194,969,024.95/68,907.43
  6. Step 6: Final answer
    x = 89,902.77

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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.