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Finding the Fourth Proportional to 88,912.10, 133,324.95 and 49,427.30

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Solution

The fourth proportional to 88,912.10, 133,324.95 and 49,427.30 is: 74,116.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,912.10 : 133,324.95 = 49,427.30 : x
  2. Step 2: Convert to fraction form
    88,912.10/133,324.95 = 49,427.30/x
  3. Step 3: Cross multiply
    88,912.10x = 133,324.95 × 49,427.30
  4. Step 4: Simplify right side
    88,912.10x = 6,589,892,301.14
  5. Step 5: Solve for x
    x = 6,589,892,301.14/88,912.10
  6. Step 6: Final answer
    x = 74,116.93

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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.