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Finding the Fourth Proportional to 120,959.61, 181,441.92 and 44,019.98

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Solution

The fourth proportional to 120,959.61, 181,441.92 and 44,019.98 is: 66,030.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,959.61 : 181,441.92 = 44,019.98 : x
  2. Step 2: Convert to fraction form
    120,959.61/181,441.92 = 44,019.98/x
  3. Step 3: Cross multiply
    120,959.61x = 181,441.92 × 44,019.98
  4. Step 4: Simplify right side
    120,959.61x = 7,987,068,782.35
  5. Step 5: Solve for x
    x = 7,987,068,782.35/120,959.61
  6. Step 6: Final answer
    x = 66,030.87

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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.