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Finding the Fourth Proportional to 119,825.68, 179,894.04 and 92,143.12

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Solution

The fourth proportional to 119,825.68, 179,894.04 and 92,143.12 is: 138,334.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,825.68 : 179,894.04 = 92,143.12 : x
  2. Step 2: Convert to fraction form
    119,825.68/179,894.04 = 92,143.12/x
  3. Step 3: Cross multiply
    119,825.68x = 179,894.04 × 92,143.12
  4. Step 4: Simplify right side
    119,825.68x = 16,575,998,115.00
  5. Step 5: Solve for x
    x = 16,575,998,115.00/119,825.68
  6. Step 6: Final answer
    x = 138,334.27

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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.