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Finding the Fourth Proportional to 74,342.70, 111,485.88 and 29,954.34

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Solution

The fourth proportional to 74,342.70, 111,485.88 and 29,954.34 is: 44,920.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,342.70 : 111,485.88 = 29,954.34 : x
  2. Step 2: Convert to fraction form
    74,342.70/111,485.88 = 29,954.34/x
  3. Step 3: Cross multiply
    74,342.70x = 111,485.88 × 29,954.34
  4. Step 4: Simplify right side
    74,342.70x = 3,339,485,954.72
  5. Step 5: Solve for x
    x = 3,339,485,954.72/74,342.70
  6. Step 6: Final answer
    x = 44,920.16

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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.