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Finding the Fourth Proportional to 93,438.54, 140,171.68 and 30,237.48

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Solution

The fourth proportional to 93,438.54, 140,171.68 and 30,237.48 is: 45,360.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,438.54 : 140,171.68 = 30,237.48 : x
  2. Step 2: Convert to fraction form
    93,438.54/140,171.68 = 30,237.48/x
  3. Step 3: Cross multiply
    93,438.54x = 140,171.68 × 30,237.48
  4. Step 4: Simplify right side
    93,438.54x = 4,238,438,370.57
  5. Step 5: Solve for x
    x = 4,238,438,370.57/93,438.54
  6. Step 6: Final answer
    x = 45,360.71

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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.