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Finding the Fourth Proportional to 143,874.24, 215,853.48 and 73,802.40

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Solution

The fourth proportional to 143,874.24, 215,853.48 and 73,802.40 is: 110,725.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,874.24 : 215,853.48 = 73,802.40 : x
  2. Step 2: Convert to fraction form
    143,874.24/215,853.48 = 73,802.40/x
  3. Step 3: Cross multiply
    143,874.24x = 215,853.48 × 73,802.40
  4. Step 4: Simplify right side
    143,874.24x = 15,930,504,872.35
  5. Step 5: Solve for x
    x = 15,930,504,872.35/143,874.24
  6. Step 6: Final answer
    x = 110,725.21

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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.