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Finding the Fourth Proportional to 119,498.88, 179,218.56 and 36,391.68

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Solution

The fourth proportional to 119,498.88, 179,218.56 and 36,391.68 is: 54,578.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,498.88 : 179,218.56 = 36,391.68 : x
  2. Step 2: Convert to fraction form
    119,498.88/179,218.56 = 36,391.68/x
  3. Step 3: Cross multiply
    119,498.88x = 179,218.56 × 36,391.68
  4. Step 4: Simplify right side
    119,498.88x = 6,522,064,485.58
  5. Step 5: Solve for x
    x = 6,522,064,485.58/119,498.88
  6. Step 6: Final answer
    x = 54,578.46

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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.