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Finding the Fourth Proportional to 234,768.68, 352,180.40 and 85,079.48

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Solution

The fourth proportional to 234,768.68, 352,180.40 and 85,079.48 is: 127,629.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,768.68 : 352,180.40 = 85,079.48 : x
  2. Step 2: Convert to fraction form
    234,768.68/352,180.40 = 85,079.48/x
  3. Step 3: Cross multiply
    234,768.68x = 352,180.40 × 85,079.48
  4. Step 4: Simplify right side
    234,768.68x = 29,963,325,298.19
  5. Step 5: Solve for x
    x = 29,963,325,298.19/234,768.68
  6. Step 6: Final answer
    x = 127,629.14

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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.