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Finding the Fourth Proportional to 93,380.70, 128,866.44 and 50,939.94

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Solution

The fourth proportional to 93,380.70, 128,866.44 and 50,939.94 is: 70,297.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,380.70 : 128,866.44 = 50,939.94 : x
  2. Step 2: Convert to fraction form
    93,380.70/128,866.44 = 50,939.94/x
  3. Step 3: Cross multiply
    93,380.70x = 128,866.44 × 50,939.94
  4. Step 4: Simplify right side
    93,380.70x = 6,564,448,721.61
  5. Step 5: Solve for x
    x = 6,564,448,721.61/93,380.70
  6. Step 6: Final answer
    x = 70,297.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.