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Finding the Fourth Proportional to 93,787.92, 140,722.56 and 51,616.44

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Solution

The fourth proportional to 93,787.92, 140,722.56 and 51,616.44 is: 77,447.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,787.92 : 140,722.56 = 51,616.44 : x
  2. Step 2: Convert to fraction form
    93,787.92/140,722.56 = 51,616.44/x
  3. Step 3: Cross multiply
    93,787.92x = 140,722.56 × 51,616.44
  4. Step 4: Simplify right side
    93,787.92x = 7,263,597,574.89
  5. Step 5: Solve for x
    x = 7,263,597,574.89/93,787.92
  6. Step 6: Final answer
    x = 77,447.05

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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.