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Finding the Fourth Proportional to 237,469.95, 327,708.01 and 128,573.74

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Solution

The fourth proportional to 237,469.95, 327,708.01 and 128,573.74 is: 177,431.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,469.95 : 327,708.01 = 128,573.74 : x
  2. Step 2: Convert to fraction form
    237,469.95/327,708.01 = 128,573.74/x
  3. Step 3: Cross multiply
    237,469.95x = 327,708.01 × 128,573.74
  4. Step 4: Simplify right side
    237,469.95x = 42,134,644,473.66
  5. Step 5: Solve for x
    x = 42,134,644,473.66/237,469.95
  6. Step 6: Final answer
    x = 177,431.48

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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.