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Finding the Fourth Proportional to 303,212.35, 418,425.71 and 167,243.38

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Solution

The fourth proportional to 303,212.35, 418,425.71 and 167,243.38 is: 230,791.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,212.35 : 418,425.71 = 167,243.38 : x
  2. Step 2: Convert to fraction form
    303,212.35/418,425.71 = 167,243.38/x
  3. Step 3: Cross multiply
    303,212.35x = 418,425.71 × 167,243.38
  4. Step 4: Simplify right side
    303,212.35x = 69,978,929,077.76
  5. Step 5: Solve for x
    x = 69,978,929,077.76/303,212.35
  6. Step 6: Final answer
    x = 230,791.82

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1.5x scale

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.