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Finding the Fourth Proportional to 234,871.13, 352,365.21 and 68,659.13

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Solution

The fourth proportional to 234,871.13, 352,365.21 and 68,659.13 is: 103,005.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,871.13 : 352,365.21 = 68,659.13 : x
  2. Step 2: Convert to fraction form
    234,871.13/352,365.21 = 68,659.13/x
  3. Step 3: Cross multiply
    234,871.13x = 352,365.21 × 68,659.13
  4. Step 4: Simplify right side
    234,871.13x = 24,193,086,999.04
  5. Step 5: Solve for x
    x = 24,193,086,999.04/234,871.13
  6. Step 6: Final answer
    x = 103,005.80

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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.