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Finding the Fourth Proportional to 349,937.94, 482,929.65 and 196,986

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Solution

The fourth proportional to 349,937.94, 482,929.65 and 196,986 is: 271,849.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,937.94 : 482,929.65 = 196,986 : x
  2. Step 2: Convert to fraction form
    349,937.94/482,929.65 = 196,986/x
  3. Step 3: Cross multiply
    349,937.94x = 482,929.65 × 196,986
  4. Step 4: Simplify right side
    349,937.94x = 95,130,380,034.90
  5. Step 5: Solve for x
    x = 95,130,380,034.90/349,937.94
  6. Step 6: Final answer
    x = 271,849.29

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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.