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Finding the Fourth Proportional to 119,790.95, 179,674.46 and 48,717.78

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Solution

The fourth proportional to 119,790.95, 179,674.46 and 48,717.78 is: 73,071.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,790.95 : 179,674.46 = 48,717.78 : x
  2. Step 2: Convert to fraction form
    119,790.95/179,674.46 = 48,717.78/x
  3. Step 3: Cross multiply
    119,790.95x = 179,674.46 × 48,717.78
  4. Step 4: Simplify right side
    119,790.95x = 8,753,340,079.22
  5. Step 5: Solve for x
    x = 8,753,340,079.22/119,790.95
  6. Step 6: Final answer
    x = 73,071.80

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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.