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Finding the Fourth Proportional to 74,991.60, 112,489.43 and 32,850

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Solution

The fourth proportional to 74,991.60, 112,489.43 and 32,850 is: 49,275.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,991.60 : 112,489.43 = 32,850 : x
  2. Step 2: Convert to fraction form
    74,991.60/112,489.43 = 32,850/x
  3. Step 3: Cross multiply
    74,991.60x = 112,489.43 × 32,850
  4. Step 4: Simplify right side
    74,991.60x = 3,695,277,611.25
  5. Step 5: Solve for x
    x = 3,695,277,611.25/74,991.60
  6. Step 6: Final answer
    x = 49,275.89

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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.