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Finding the Fourth Proportional to 303,530.63, 418,861.27 and 167,561.65

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Solution

The fourth proportional to 303,530.63, 418,861.27 and 167,561.65 is: 231,229.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,530.63 : 418,861.27 = 167,561.65 : x
  2. Step 2: Convert to fraction form
    303,530.63/418,861.27 = 167,561.65/x
  3. Step 3: Cross multiply
    303,530.63x = 418,861.27 × 167,561.65
  4. Step 4: Simplify right side
    303,530.63x = 70,185,085,784.06
  5. Step 5: Solve for x
    x = 70,185,085,784.06/303,530.63
  6. Step 6: Final answer
    x = 231,229.01

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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.