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Finding the Fourth Proportional to 374,881.96, 517,372.68 and 205,141.60

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Solution

The fourth proportional to 374,881.96, 517,372.68 and 205,141.60 is: 283,114.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,881.96 : 517,372.68 = 205,141.60 : x
  2. Step 2: Convert to fraction form
    374,881.96/517,372.68 = 205,141.60/x
  3. Step 3: Cross multiply
    374,881.96x = 517,372.68 × 205,141.60
  4. Step 4: Simplify right side
    374,881.96x = 106,134,659,371.49
  5. Step 5: Solve for x
    x = 106,134,659,371.49/374,881.96
  6. Step 6: Final answer
    x = 283,114.88

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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.