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Finding the Fourth Proportional to 93,878.58, 140,774.12 and 54,446.96

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Solution

The fourth proportional to 93,878.58, 140,774.12 and 54,446.96 is: 81,645.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,878.58 : 140,774.12 = 54,446.96 : x
  2. Step 2: Convert to fraction form
    93,878.58/140,774.12 = 54,446.96/x
  3. Step 3: Cross multiply
    93,878.58x = 140,774.12 × 54,446.96
  4. Step 4: Simplify right side
    93,878.58x = 7,664,722,880.68
  5. Step 5: Solve for x
    x = 7,664,722,880.68/93,878.58
  6. Step 6: Final answer
    x = 81,645.07

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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.