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Finding the Fourth Proportional to 143,564.44, 215,345.19 and 36,947.98

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Solution

The fourth proportional to 143,564.44, 215,345.19 and 36,947.98 is: 55,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,564.44 : 215,345.19 = 36,947.98 : x
  2. Step 2: Convert to fraction form
    143,564.44/215,345.19 = 36,947.98/x
  3. Step 3: Cross multiply
    143,564.44x = 215,345.19 × 36,947.98
  4. Step 4: Simplify right side
    143,564.44x = 7,956,568,761.80
  5. Step 5: Solve for x
    x = 7,956,568,761.80/143,564.44
  6. Step 6: Final answer
    x = 55,421.58

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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.