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Finding the Fourth Proportional to 93,212.10, 139,693.41 and 33,991.92

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Solution

The fourth proportional to 93,212.10, 139,693.41 and 33,991.92 is: 50,942.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,212.10 : 139,693.41 = 33,991.92 : x
  2. Step 2: Convert to fraction form
    93,212.10/139,693.41 = 33,991.92/x
  3. Step 3: Cross multiply
    93,212.10x = 139,693.41 × 33,991.92
  4. Step 4: Simplify right side
    93,212.10x = 4,748,447,217.25
  5. Step 5: Solve for x
    x = 4,748,447,217.25/93,212.10
  6. Step 6: Final answer
    x = 50,942.39

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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.