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Finding the Fourth Proportional to 93,709.75, 140,564.76 and 38,305.75

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Solution

The fourth proportional to 93,709.75, 140,564.76 and 38,305.75 is: 57,458.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,709.75 : 140,564.76 = 38,305.75 : x
  2. Step 2: Convert to fraction form
    93,709.75/140,564.76 = 38,305.75/x
  3. Step 3: Cross multiply
    93,709.75x = 140,564.76 × 38,305.75
  4. Step 4: Simplify right side
    93,709.75x = 5,384,438,555.37
  5. Step 5: Solve for x
    x = 5,384,438,555.37/93,709.75
  6. Step 6: Final answer
    x = 57,458.68

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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.