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Finding the Fourth Proportional to 315,789.76, 475,543.33 and 227,663.38

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Solution

The fourth proportional to 315,789.76, 475,543.33 and 227,663.38 is: 342,835.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,789.76 : 475,543.33 = 227,663.38 : x
  2. Step 2: Convert to fraction form
    315,789.76/475,543.33 = 227,663.38/x
  3. Step 3: Cross multiply
    315,789.76x = 475,543.33 × 227,663.38
  4. Step 4: Simplify right side
    315,789.76x = 108,263,801,844.26
  5. Step 5: Solve for x
    x = 108,263,801,844.26/315,789.76
  6. Step 6: Final answer
    x = 342,835.06

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.