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Finding the Fourth Proportional to 143,890.40, 215,851.80 and 44,049.80

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Solution

The fourth proportional to 143,890.40, 215,851.80 and 44,049.80 is: 66,079.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,890.40 : 215,851.80 = 44,049.80 : x
  2. Step 2: Convert to fraction form
    143,890.40/215,851.80 = 44,049.80/x
  3. Step 3: Cross multiply
    143,890.40x = 215,851.80 × 44,049.80
  4. Step 4: Simplify right side
    143,890.40x = 9,508,228,619.64
  5. Step 5: Solve for x
    x = 9,508,228,619.64/143,890.40
  6. Step 6: Final answer
    x = 66,079.66

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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.