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Finding the Fourth Proportional to 119,676.80, 179,460.25 and 40,758.91

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Solution

The fourth proportional to 119,676.80, 179,460.25 and 40,758.91 is: 61,119.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,676.80 : 179,460.25 = 40,758.91 : x
  2. Step 2: Convert to fraction form
    119,676.80/179,460.25 = 40,758.91/x
  3. Step 3: Cross multiply
    119,676.80x = 179,460.25 × 40,758.91
  4. Step 4: Simplify right side
    119,676.80x = 7,314,604,178.33
  5. Step 5: Solve for x
    x = 7,314,604,178.33/119,676.80
  6. Step 6: Final answer
    x = 61,119.65

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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.