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Finding the Fourth Proportional to 68,887.76, 103,235.40 and 37,229.57

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Solution

The fourth proportional to 68,887.76, 103,235.40 and 37,229.57 is: 55,792.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,887.76 : 103,235.40 = 37,229.57 : x
  2. Step 2: Convert to fraction form
    68,887.76/103,235.40 = 37,229.57/x
  3. Step 3: Cross multiply
    68,887.76x = 103,235.40 × 37,229.57
  4. Step 4: Simplify right side
    68,887.76x = 3,843,409,034.60
  5. Step 5: Solve for x
    x = 3,843,409,034.60/68,887.76
  6. Step 6: Final answer
    x = 55,792.34

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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.