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Finding the Fourth Proportional to 374,092.46, 561,217.49 and 121,353.21

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Solution

The fourth proportional to 374,092.46, 561,217.49 and 121,353.21 is: 182,055.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,092.46 : 561,217.49 = 121,353.21 : x
  2. Step 2: Convert to fraction form
    374,092.46/561,217.49 = 121,353.21/x
  3. Step 3: Cross multiply
    374,092.46x = 561,217.49 × 121,353.21
  4. Step 4: Simplify right side
    374,092.46x = 68,105,543,919.64
  5. Step 5: Solve for x
    x = 68,105,543,919.64/374,092.46
  6. Step 6: Final answer
    x = 182,055.38

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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.