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Finding the Fourth Proportional to 349,387.69, 482,156.65 and 198,492.97

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Solution

The fourth proportional to 349,387.69, 482,156.65 and 198,492.97 is: 273,921.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,387.69 : 482,156.65 = 198,492.97 : x
  2. Step 2: Convert to fraction form
    349,387.69/482,156.65 = 198,492.97/x
  3. Step 3: Cross multiply
    349,387.69x = 482,156.65 × 198,492.97
  4. Step 4: Simplify right side
    349,387.69x = 95,704,704,471.29
  5. Step 5: Solve for x
    x = 95,704,704,471.29/349,387.69
  6. Step 6: Final answer
    x = 273,921.23

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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.