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Finding the Fourth Proportional to 93,661.92, 140,344.92 and 76,045.68

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Solution

The fourth proportional to 93,661.92, 140,344.92 and 76,045.68 is: 113,948.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,661.92 : 140,344.92 = 76,045.68 : x
  2. Step 2: Convert to fraction form
    93,661.92/140,344.92 = 76,045.68/x
  3. Step 3: Cross multiply
    93,661.92x = 140,344.92 × 76,045.68
  4. Step 4: Simplify right side
    93,661.92x = 10,672,624,875.95
  5. Step 5: Solve for x
    x = 10,672,624,875.95/93,661.92
  6. Step 6: Final answer
    x = 113,948.39

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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.