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Finding the Fourth Proportional to 230,388.49, 345,345.54 and 88,200.28

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Solution

The fourth proportional to 230,388.49, 345,345.54 and 88,200.28 is: 132,209.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,388.49 : 345,345.54 = 88,200.28 : x
  2. Step 2: Convert to fraction form
    230,388.49/345,345.54 = 88,200.28/x
  3. Step 3: Cross multiply
    230,388.49x = 345,345.54 × 88,200.28
  4. Step 4: Simplify right side
    230,388.49x = 30,459,573,324.75
  5. Step 5: Solve for x
    x = 30,459,573,324.75/230,388.49
  6. Step 6: Final answer
    x = 132,209.61

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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.