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Finding the Fourth Proportional to 267,671.12, 401,605.08 and 109,857.20

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Solution

The fourth proportional to 267,671.12, 401,605.08 and 109,857.20 is: 164,826.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,671.12 : 401,605.08 = 109,857.20 : x
  2. Step 2: Convert to fraction form
    267,671.12/401,605.08 = 109,857.20/x
  3. Step 3: Cross multiply
    267,671.12x = 401,605.08 × 109,857.20
  4. Step 4: Simplify right side
    267,671.12x = 44,119,209,594.58
  5. Step 5: Solve for x
    x = 44,119,209,594.58/267,671.12
  6. Step 6: Final answer
    x = 164,826.19

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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.