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Finding the Fourth Proportional to 68,024.56, 102,062.76 and 61,427.92

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Solution

The fourth proportional to 68,024.56, 102,062.76 and 61,427.92 is: 92,165.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,024.56 : 102,062.76 = 61,427.92 : x
  2. Step 2: Convert to fraction form
    68,024.56/102,062.76 = 61,427.92/x
  3. Step 3: Cross multiply
    68,024.56x = 102,062.76 × 61,427.92
  4. Step 4: Simplify right side
    68,024.56x = 6,269,503,056.26
  5. Step 5: Solve for x
    x = 6,269,503,056.26/68,024.56
  6. Step 6: Final answer
    x = 92,165.29

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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.