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Finding the Fourth Proportional to 74,262.72, 111,366.52 and 29,874.32

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Solution

The fourth proportional to 74,262.72, 111,366.52 and 29,874.32 is: 44,800.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,262.72 : 111,366.52 = 29,874.32 : x
  2. Step 2: Convert to fraction form
    74,262.72/111,366.52 = 29,874.32/x
  3. Step 3: Cross multiply
    74,262.72x = 111,366.52 × 29,874.32
  4. Step 4: Simplify right side
    74,262.72x = 3,326,999,055.77
  5. Step 5: Solve for x
    x = 3,326,999,055.77/74,262.72
  6. Step 6: Final answer
    x = 44,800.39

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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.