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Finding the Fourth Proportional to 120,689.68, 181,050.41 and 44,777.89

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Solution

The fourth proportional to 120,689.68, 181,050.41 and 44,777.89 is: 67,172.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,689.68 : 181,050.41 = 44,777.89 : x
  2. Step 2: Convert to fraction form
    120,689.68/181,050.41 = 44,777.89/x
  3. Step 3: Cross multiply
    120,689.68x = 181,050.41 × 44,777.89
  4. Step 4: Simplify right side
    120,689.68x = 8,107,054,438.18
  5. Step 5: Solve for x
    x = 8,107,054,438.18/120,689.68
  6. Step 6: Final answer
    x = 67,172.72

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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.