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Finding the Fourth Proportional to 302,270.43, 453,389.25 and 91,891.97

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Solution

The fourth proportional to 302,270.43, 453,389.25 and 91,891.97 is: 137,832.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,270.43 : 453,389.25 = 91,891.97 : x
  2. Step 2: Convert to fraction form
    302,270.43/453,389.25 = 91,891.97/x
  3. Step 3: Cross multiply
    302,270.43x = 453,389.25 × 91,891.97
  4. Step 4: Simplify right side
    302,270.43x = 41,662,830,620.29
  5. Step 5: Solve for x
    x = 41,662,830,620.29/302,270.43
  6. Step 6: Final answer
    x = 137,832.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.