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Finding the Fourth Proportional to 74,894.96, 112,342.44 and 51,450.32

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Solution

The fourth proportional to 74,894.96, 112,342.44 and 51,450.32 is: 77,175.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,894.96 : 112,342.44 = 51,450.32 : x
  2. Step 2: Convert to fraction form
    74,894.96/112,342.44 = 51,450.32/x
  3. Step 3: Cross multiply
    74,894.96x = 112,342.44 × 51,450.32
  4. Step 4: Simplify right side
    74,894.96x = 5,780,054,487.58
  5. Step 5: Solve for x
    x = 5,780,054,487.58/74,894.96
  6. Step 6: Final answer
    x = 77,175.48

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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.