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Finding the Fourth Proportional to 93,656.92, 140,337.42 and 76,040.68

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Solution

The fourth proportional to 93,656.92, 140,337.42 and 76,040.68 is: 113,940.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,656.92 : 140,337.42 = 76,040.68 : x
  2. Step 2: Convert to fraction form
    93,656.92/140,337.42 = 76,040.68/x
  3. Step 3: Cross multiply
    93,656.92x = 140,337.42 × 76,040.68
  4. Step 4: Simplify right side
    93,656.92x = 10,671,352,846.25
  5. Step 5: Solve for x
    x = 10,671,352,846.25/93,656.92
  6. Step 6: Final answer
    x = 113,940.89

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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.