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Finding the Fourth Proportional to 306,347.32, 422,756.94 and 168,523.28

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Solution

The fourth proportional to 306,347.32, 422,756.94 and 168,523.28 is: 232,560.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,347.32 : 422,756.94 = 168,523.28 : x
  2. Step 2: Convert to fraction form
    306,347.32/422,756.94 = 168,523.28/x
  3. Step 3: Cross multiply
    306,347.32x = 422,756.94 × 168,523.28
  4. Step 4: Simplify right side
    306,347.32x = 71,244,384,057.78
  5. Step 5: Solve for x
    x = 71,244,384,057.78/306,347.32
  6. Step 6: Final answer
    x = 232,560.82

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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.