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Finding the Fourth Proportional to 267,241.20, 368,823.96 and 154,068

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Solution

The fourth proportional to 267,241.20, 368,823.96 and 154,068 is: 212,631.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,241.20 : 368,823.96 = 154,068 : x
  2. Step 2: Convert to fraction form
    267,241.20/368,823.96 = 154,068/x
  3. Step 3: Cross multiply
    267,241.20x = 368,823.96 × 154,068
  4. Step 4: Simplify right side
    267,241.20x = 56,823,969,869.28
  5. Step 5: Solve for x
    x = 56,823,969,869.28/267,241.20
  6. Step 6: Final answer
    x = 212,631.77

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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.