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Finding the Fourth Proportional to 93,717, 140,575.68 and 38,313

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Solution

The fourth proportional to 93,717, 140,575.68 and 38,313 is: 57,469.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,717 : 140,575.68 = 38,313 : x
  2. Step 2: Convert to fraction form
    93,717/140,575.68 = 38,313/x
  3. Step 3: Cross multiply
    93,717x = 140,575.68 × 38,313
  4. Step 4: Simplify right side
    93,717x = 5,385,876,027.84
  5. Step 5: Solve for x
    x = 5,385,876,027.84/93,717
  6. Step 6: Final answer
    x = 57,469.57

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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.