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Finding the Fourth Proportional to 475,615.20, 713,455.20 and 151,377.60

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Solution

The fourth proportional to 475,615.20, 713,455.20 and 151,377.60 is: 227,076.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,615.20 : 713,455.20 = 151,377.60 : x
  2. Step 2: Convert to fraction form
    475,615.20/713,455.20 = 151,377.60/x
  3. Step 3: Cross multiply
    475,615.20x = 713,455.20 × 151,377.60
  4. Step 4: Simplify right side
    475,615.20x = 108,001,135,883.52
  5. Step 5: Solve for x
    x = 108,001,135,883.52/475,615.20
  6. Step 6: Final answer
    x = 227,076.71

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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.