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Finding the Fourth Proportional to 237,495.12, 327,743.76 and 128,600.64

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Solution

The fourth proportional to 237,495.12, 327,743.76 and 128,600.64 is: 177,469.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,495.12 : 327,743.76 = 128,600.64 : x
  2. Step 2: Convert to fraction form
    237,495.12/327,743.76 = 128,600.64/x
  3. Step 3: Cross multiply
    237,495.12x = 327,743.76 × 128,600.64
  4. Step 4: Simplify right side
    237,495.12x = 42,148,057,292.01
  5. Step 5: Solve for x
    x = 42,148,057,292.01/237,495.12
  6. Step 6: Final answer
    x = 177,469.15

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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.