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Finding the Fourth Proportional to 93,155.84, 139,736.05 and 33,991.49

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Solution

The fourth proportional to 93,155.84, 139,736.05 and 33,991.49 is: 50,988.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,155.84 : 139,736.05 = 33,991.49 : x
  2. Step 2: Convert to fraction form
    93,155.84/139,736.05 = 33,991.49/x
  3. Step 3: Cross multiply
    93,155.84x = 139,736.05 × 33,991.49
  4. Step 4: Simplify right side
    93,155.84x = 4,749,836,376.26
  5. Step 5: Solve for x
    x = 4,749,836,376.26/93,155.84
  6. Step 6: Final answer
    x = 50,988.07

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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.