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Finding the Fourth Proportional to 303,468.56, 418,782.30 and 167,505.08

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Solution

The fourth proportional to 303,468.56, 418,782.30 and 167,505.08 is: 231,154.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,468.56 : 418,782.30 = 167,505.08 : x
  2. Step 2: Convert to fraction form
    303,468.56/418,782.30 = 167,505.08/x
  3. Step 3: Cross multiply
    303,468.56x = 418,782.30 × 167,505.08
  4. Step 4: Simplify right side
    303,468.56x = 70,148,162,664.08
  5. Step 5: Solve for x
    x = 70,148,162,664.08/303,468.56
  6. Step 6: Final answer
    x = 231,154.63

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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.