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Finding the Fourth Proportional to 303,921.67, 455,773.14 and 104,188.42

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Solution

The fourth proportional to 303,921.67, 455,773.14 and 104,188.42 is: 156,245.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,921.67 : 455,773.14 = 104,188.42 : x
  2. Step 2: Convert to fraction form
    303,921.67/455,773.14 = 104,188.42/x
  3. Step 3: Cross multiply
    303,921.67x = 455,773.14 × 104,188.42
  4. Step 4: Simplify right side
    303,921.67x = 47,486,283,335.04
  5. Step 5: Solve for x
    x = 47,486,283,335.04/303,921.67
  6. Step 6: Final answer
    x = 156,245.14

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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.