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Finding the Fourth Proportional to 143,889.36, 215,702.56 and 50,344.08

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Solution

The fourth proportional to 143,889.36, 215,702.56 and 50,344.08 is: 75,470.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,889.36 : 215,702.56 = 50,344.08 : x
  2. Step 2: Convert to fraction form
    143,889.36/215,702.56 = 50,344.08/x
  3. Step 3: Cross multiply
    143,889.36x = 215,702.56 × 50,344.08
  4. Step 4: Simplify right side
    143,889.36x = 10,859,346,936.84
  5. Step 5: Solve for x
    x = 10,859,346,936.84/143,889.36
  6. Step 6: Final answer
    x = 75,470.12

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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.