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Finding the Fourth Proportional to 303,045.20, 418,185.48 and 167,078.96

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Solution

The fourth proportional to 303,045.20, 418,185.48 and 167,078.96 is: 230,559.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,045.20 : 418,185.48 = 167,078.96 : x
  2. Step 2: Convert to fraction form
    303,045.20/418,185.48 = 167,078.96/x
  3. Step 3: Cross multiply
    303,045.20x = 418,185.48 × 167,078.96
  4. Step 4: Simplify right side
    303,045.20x = 69,869,995,085.50
  5. Step 5: Solve for x
    x = 69,869,995,085.50/303,045.20
  6. Step 6: Final answer
    x = 230,559.65

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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.