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Finding the Fourth Proportional to 228,362.15, 315,062.96 and 132,790.25

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Solution

The fourth proportional to 228,362.15, 315,062.96 and 132,790.25 is: 183,205.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,362.15 : 315,062.96 = 132,790.25 : x
  2. Step 2: Convert to fraction form
    228,362.15/315,062.96 = 132,790.25/x
  3. Step 3: Cross multiply
    228,362.15x = 315,062.96 × 132,790.25
  4. Step 4: Simplify right side
    228,362.15x = 41,837,289,347.85
  5. Step 5: Solve for x
    x = 41,837,289,347.85/228,362.15
  6. Step 6: Final answer
    x = 183,205.88

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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.