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Finding the Fourth Proportional to 225,309.73, 310,906.16 and 134,647.64

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Solution

The fourth proportional to 225,309.73, 310,906.16 and 134,647.64 is: 185,801.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,309.73 : 310,906.16 = 134,647.64 : x
  2. Step 2: Convert to fraction form
    225,309.73/310,906.16 = 134,647.64/x
  3. Step 3: Cross multiply
    225,309.73x = 310,906.16 × 134,647.64
  4. Step 4: Simplify right side
    225,309.73x = 41,862,781,314.42
  5. Step 5: Solve for x
    x = 41,862,781,314.42/225,309.73
  6. Step 6: Final answer
    x = 185,801.04

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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.