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Finding the Fourth Proportional to 120,044.33, 179,929.76 and 40,063.51

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Solution

The fourth proportional to 120,044.33, 179,929.76 and 40,063.51 is: 60,049.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,044.33 : 179,929.76 = 40,063.51 : x
  2. Step 2: Convert to fraction form
    120,044.33/179,929.76 = 40,063.51/x
  3. Step 3: Cross multiply
    120,044.33x = 179,929.76 × 40,063.51
  4. Step 4: Simplify right side
    120,044.33x = 7,208,617,763.65
  5. Step 5: Solve for x
    x = 7,208,617,763.65/120,044.33
  6. Step 6: Final answer
    x = 60,049.63

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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.