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Finding the Fourth Proportional to 185,992.48, 278,986.20 and 45,752.32

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Solution

The fourth proportional to 185,992.48, 278,986.20 and 45,752.32 is: 68,627.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,992.48 : 278,986.20 = 45,752.32 : x
  2. Step 2: Convert to fraction form
    185,992.48/278,986.20 = 45,752.32/x
  3. Step 3: Cross multiply
    185,992.48x = 278,986.20 × 45,752.32
  4. Step 4: Simplify right side
    185,992.48x = 12,764,265,897.98
  5. Step 5: Solve for x
    x = 12,764,265,897.98/185,992.48
  6. Step 6: Final answer
    x = 68,627.86

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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.