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Finding the Fourth Proportional to 120,782.89, 181,118.11 and 44,828.52

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Solution

The fourth proportional to 120,782.89, 181,118.11 and 44,828.52 is: 67,221.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,782.89 : 181,118.11 = 44,828.52 : x
  2. Step 2: Convert to fraction form
    120,782.89/181,118.11 = 44,828.52/x
  3. Step 3: Cross multiply
    120,782.89x = 181,118.11 × 44,828.52
  4. Step 4: Simplify right side
    120,782.89x = 8,119,256,816.50
  5. Step 5: Solve for x
    x = 8,119,256,816.50/120,782.89
  6. Step 6: Final answer
    x = 67,221.91

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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.