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Finding the Fourth Proportional to 308,170.41, 425,317.40 and 177,345.36

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Solution

The fourth proportional to 308,170.41, 425,317.40 and 177,345.36 is: 244,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,170.41 : 425,317.40 = 177,345.36 : x
  2. Step 2: Convert to fraction form
    308,170.41/425,317.40 = 177,345.36/x
  3. Step 3: Cross multiply
    308,170.41x = 425,317.40 × 177,345.36
  4. Step 4: Simplify right side
    308,170.41x = 75,428,066,530.54
  5. Step 5: Solve for x
    x = 75,428,066,530.54/308,170.41
  6. Step 6: Final answer
    x = 244,760.90

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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.