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Finding the Fourth Proportional to 116,644.58, 161,046.98 and 89,739.62

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Solution

The fourth proportional to 116,644.58, 161,046.98 and 89,739.62 is: 123,900.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,644.58 : 161,046.98 = 89,739.62 : x
  2. Step 2: Convert to fraction form
    116,644.58/161,046.98 = 89,739.62/x
  3. Step 3: Cross multiply
    116,644.58x = 161,046.98 × 89,739.62
  4. Step 4: Simplify right side
    116,644.58x = 14,452,294,787.35
  5. Step 5: Solve for x
    x = 14,452,294,787.35/116,644.58
  6. Step 6: Final answer
    x = 123,900.27

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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.