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Finding the Fourth Proportional to 104,315.70, 143,954.40 and 56,568.47

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Solution

The fourth proportional to 104,315.70, 143,954.40 and 56,568.47 is: 78,063.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,315.70 : 143,954.40 = 56,568.47 : x
  2. Step 2: Convert to fraction form
    104,315.70/143,954.40 = 56,568.47/x
  3. Step 3: Cross multiply
    104,315.70x = 143,954.40 × 56,568.47
  4. Step 4: Simplify right side
    104,315.70x = 8,143,279,438.00
  5. Step 5: Solve for x
    x = 8,143,279,438.00/104,315.70
  6. Step 6: Final answer
    x = 78,063.80

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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.