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Finding the Fourth Proportional to 143,936.40, 215,920.80 and 44,095.80

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Solution

The fourth proportional to 143,936.40, 215,920.80 and 44,095.80 is: 66,148.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,936.40 : 215,920.80 = 44,095.80 : x
  2. Step 2: Convert to fraction form
    143,936.40/215,920.80 = 44,095.80/x
  3. Step 3: Cross multiply
    143,936.40x = 215,920.80 × 44,095.80
  4. Step 4: Simplify right side
    143,936.40x = 9,521,200,412.64
  5. Step 5: Solve for x
    x = 9,521,200,412.64/143,936.40
  6. Step 6: Final answer
    x = 66,148.66

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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.