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Finding the Fourth Proportional to 267,517.12, 400,992.76 and 98,929.12

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Solution

The fourth proportional to 267,517.12, 400,992.76 and 98,929.12 is: 148,289.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,517.12 : 400,992.76 = 98,929.12 : x
  2. Step 2: Convert to fraction form
    267,517.12/400,992.76 = 98,929.12/x
  3. Step 3: Cross multiply
    267,517.12x = 400,992.76 × 98,929.12
  4. Step 4: Simplify right side
    267,517.12x = 39,669,860,873.17
  5. Step 5: Solve for x
    x = 39,669,860,873.17/267,517.12
  6. Step 6: Final answer
    x = 148,289.05

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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.