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Finding the Fourth Proportional to 351,404.12, 484,936.98 and 190,259.30

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Solution

The fourth proportional to 351,404.12, 484,936.98 and 190,259.30 is: 262,557.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,404.12 : 484,936.98 = 190,259.30 : x
  2. Step 2: Convert to fraction form
    351,404.12/484,936.98 = 190,259.30/x
  3. Step 3: Cross multiply
    351,404.12x = 484,936.98 × 190,259.30
  4. Step 4: Simplify right side
    351,404.12x = 92,263,770,358.91
  5. Step 5: Solve for x
    x = 92,263,770,358.91/351,404.12
  6. Step 6: Final answer
    x = 262,557.45

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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.