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Finding the Fourth Proportional to 351,142.59, 484,575.44 and 189,997.95

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Solution

The fourth proportional to 351,142.59, 484,575.44 and 189,997.95 is: 262,196.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,142.59 : 484,575.44 = 189,997.95 : x
  2. Step 2: Convert to fraction form
    351,142.59/484,575.44 = 189,997.95/x
  3. Step 3: Cross multiply
    351,142.59x = 484,575.44 × 189,997.95
  4. Step 4: Simplify right side
    351,142.59x = 92,068,339,270.36
  5. Step 5: Solve for x
    x = 92,068,339,270.36/351,142.59
  6. Step 6: Final answer
    x = 262,196.45

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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.