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Finding the Fourth Proportional to 119,751.86, 179,642.12 and 48,659.31

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Solution

The fourth proportional to 119,751.86, 179,642.12 and 48,659.31 is: 72,994.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,751.86 : 179,642.12 = 48,659.31 : x
  2. Step 2: Convert to fraction form
    119,751.86/179,642.12 = 48,659.31/x
  3. Step 3: Cross multiply
    119,751.86x = 179,642.12 × 48,659.31
  4. Step 4: Simplify right side
    119,751.86x = 8,741,261,362.84
  5. Step 5: Solve for x
    x = 8,741,261,362.84/119,751.86
  6. Step 6: Final answer
    x = 72,994.78

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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.