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Finding the Fourth Proportional to 120,957.65, 181,438.97 and 44,018.01

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Solution

The fourth proportional to 120,957.65, 181,438.97 and 44,018.01 is: 66,027.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,957.65 : 181,438.97 = 44,018.01 : x
  2. Step 2: Convert to fraction form
    120,957.65/181,438.97 = 44,018.01/x
  3. Step 3: Cross multiply
    120,957.65x = 181,438.97 × 44,018.01
  4. Step 4: Simplify right side
    120,957.65x = 7,986,582,175.76
  5. Step 5: Solve for x
    x = 7,986,582,175.76/120,957.65
  6. Step 6: Final answer
    x = 66,027.92

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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.