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Finding the Fourth Proportional to 185,894.12, 278,824.08 and 61,235.12

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Solution

The fourth proportional to 185,894.12, 278,824.08 and 61,235.12 is: 91,847.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,894.12 : 278,824.08 = 61,235.12 : x
  2. Step 2: Convert to fraction form
    185,894.12/278,824.08 = 61,235.12/x
  3. Step 3: Cross multiply
    185,894.12x = 278,824.08 × 61,235.12
  4. Step 4: Simplify right side
    185,894.12x = 17,073,825,997.69
  5. Step 5: Solve for x
    x = 17,073,825,997.69/185,894.12
  6. Step 6: Final answer
    x = 91,847.05

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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.