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Finding the Fourth Proportional to 234,971.02, 352,340.76 and 85,188.82

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Solution

The fourth proportional to 234,971.02, 352,340.76 and 85,188.82 is: 127,741.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,971.02 : 352,340.76 = 85,188.82 : x
  2. Step 2: Convert to fraction form
    234,971.02/352,340.76 = 85,188.82/x
  3. Step 3: Cross multiply
    234,971.02x = 352,340.76 × 85,188.82
  4. Step 4: Simplify right side
    234,971.02x = 30,015,493,582.30
  5. Step 5: Solve for x
    x = 30,015,493,582.30/234,971.02
  6. Step 6: Final answer
    x = 127,741.26

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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.