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Finding the Fourth Proportional to 74,930.19, 112,437.79 and 27,539.11

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Solution

The fourth proportional to 74,930.19, 112,437.79 and 27,539.11 is: 41,324.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,930.19 : 112,437.79 = 27,539.11 : x
  2. Step 2: Convert to fraction form
    74,930.19/112,437.79 = 27,539.11/x
  3. Step 3: Cross multiply
    74,930.19x = 112,437.79 × 27,539.11
  4. Step 4: Simplify right side
    74,930.19x = 3,096,436,738.67
  5. Step 5: Solve for x
    x = 3,096,436,738.67/74,930.19
  6. Step 6: Final answer
    x = 41,324.29

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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.