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Finding the Fourth Proportional to 104,314.56, 143,954.07 and 56,568

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Solution

The fourth proportional to 104,314.56, 143,954.07 and 56,568 is: 78,063.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,314.56 : 143,954.07 = 56,568 : x
  2. Step 2: Convert to fraction form
    104,314.56/143,954.07 = 56,568/x
  3. Step 3: Cross multiply
    104,314.56x = 143,954.07 × 56,568
  4. Step 4: Simplify right side
    104,314.56x = 8,143,193,831.76
  5. Step 5: Solve for x
    x = 8,143,193,831.76/104,314.56
  6. Step 6: Final answer
    x = 78,063.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.