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Finding the Fourth Proportional to 93,778.77, 140,972.97 and 75,261.71

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Solution

The fourth proportional to 93,778.77, 140,972.97 and 75,261.71 is: 113,137.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,778.77 : 140,972.97 = 75,261.71 : x
  2. Step 2: Convert to fraction form
    93,778.77/140,972.97 = 75,261.71/x
  3. Step 3: Cross multiply
    93,778.77x = 140,972.97 × 75,261.71
  4. Step 4: Simplify right side
    93,778.77x = 10,609,865,704.81
  5. Step 5: Solve for x
    x = 10,609,865,704.81/93,778.77
  6. Step 6: Final answer
    x = 113,137.18

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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.