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Finding the Fourth Proportional to 302,243.88, 453,349.42 and 91,865.41

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Solution

The fourth proportional to 302,243.88, 453,349.42 and 91,865.41 is: 137,793.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,243.88 : 453,349.42 = 91,865.41 : x
  2. Step 2: Convert to fraction form
    302,243.88/453,349.42 = 91,865.41/x
  3. Step 3: Cross multiply
    302,243.88x = 453,349.42 × 91,865.41
  4. Step 4: Simplify right side
    302,243.88x = 41,647,130,341.56
  5. Step 5: Solve for x
    x = 41,647,130,341.56/302,243.88
  6. Step 6: Final answer
    x = 137,793.13

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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.