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Finding the Fourth Proportional to 93,099.70, 139,635.73 and 33,921.55

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Solution

The fourth proportional to 93,099.70, 139,635.73 and 33,921.55 is: 50,877.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,099.70 : 139,635.73 = 33,921.55 : x
  2. Step 2: Convert to fraction form
    93,099.70/139,635.73 = 33,921.55/x
  3. Step 3: Cross multiply
    93,099.70x = 139,635.73 × 33,921.55
  4. Step 4: Simplify right side
    93,099.70x = 4,736,660,396.98
  5. Step 5: Solve for x
    x = 4,736,660,396.98/93,099.70
  6. Step 6: Final answer
    x = 50,877.29

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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.