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Finding the Fourth Proportional to 93,126.80, 139,688.52 and 33,961.88

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Solution

The fourth proportional to 93,126.80, 139,688.52 and 33,961.88 is: 50,942.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,126.80 : 139,688.52 = 33,961.88 : x
  2. Step 2: Convert to fraction form
    93,126.80/139,688.52 = 33,961.88/x
  3. Step 3: Cross multiply
    93,126.80x = 139,688.52 × 33,961.88
  4. Step 4: Simplify right side
    93,126.80x = 4,744,084,753.62
  5. Step 5: Solve for x
    x = 4,744,084,753.62/93,126.80
  6. Step 6: Final answer
    x = 50,942.21

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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.