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Finding the Fourth Proportional to 119,755.20, 179,632.80 and 49,611.20

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Solution

The fourth proportional to 119,755.20, 179,632.80 and 49,611.20 is: 74,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,755.20 : 179,632.80 = 49,611.20 : x
  2. Step 2: Convert to fraction form
    119,755.20/179,632.80 = 49,611.20/x
  3. Step 3: Cross multiply
    119,755.20x = 179,632.80 × 49,611.20
  4. Step 4: Simplify right side
    119,755.20x = 8,911,798,767.36
  5. Step 5: Solve for x
    x = 8,911,798,767.36/119,755.20
  6. Step 6: Final answer
    x = 74,416.80

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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.