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Finding the Fourth Proportional to 93,338, 128,801.76 and 53,046.44

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Solution

The fourth proportional to 93,338, 128,801.76 and 53,046.44 is: 73,201.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,338 : 128,801.76 = 53,046.44 : x
  2. Step 2: Convert to fraction form
    93,338/128,801.76 = 53,046.44/x
  3. Step 3: Cross multiply
    93,338x = 128,801.76 × 53,046.44
  4. Step 4: Simplify right side
    93,338x = 6,832,474,833.73
  5. Step 5: Solve for x
    x = 6,832,474,833.73/93,338
  6. Step 6: Final answer
    x = 73,201.43

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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.