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Finding the Fourth Proportional to 302,351.47, 453,592.81 and 91,983.94

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Solution

The fourth proportional to 302,351.47, 453,592.81 and 91,983.94 is: 137,995.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,351.47 : 453,592.81 = 91,983.94 : x
  2. Step 2: Convert to fraction form
    302,351.47/453,592.81 = 91,983.94/x
  3. Step 3: Cross multiply
    302,351.47x = 453,592.81 × 91,983.94
  4. Step 4: Simplify right side
    302,351.47x = 41,723,252,800.47
  5. Step 5: Solve for x
    x = 41,723,252,800.47/302,351.47
  6. Step 6: Final answer
    x = 137,995.87

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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.