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Finding the Fourth Proportional to 93,649.92, 140,326.92 and 76,033.68

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Solution

The fourth proportional to 93,649.92, 140,326.92 and 76,033.68 is: 113,930.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,649.92 : 140,326.92 = 76,033.68 : x
  2. Step 2: Convert to fraction form
    93,649.92/140,326.92 = 76,033.68/x
  3. Step 3: Cross multiply
    93,649.92x = 140,326.92 × 76,033.68
  4. Step 4: Simplify right side
    93,649.92x = 10,669,572,130.67
  5. Step 5: Solve for x
    x = 10,669,572,130.67/93,649.92
  6. Step 6: Final answer
    x = 113,930.39

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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.