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Finding the Fourth Proportional to 104,142.74, 143,716.76 and 56,395.94

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Solution

The fourth proportional to 104,142.74, 143,716.76 and 56,395.94 is: 77,826.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,142.74 : 143,716.76 = 56,395.94 : x
  2. Step 2: Convert to fraction form
    104,142.74/143,716.76 = 56,395.94/x
  3. Step 3: Cross multiply
    104,142.74x = 143,716.76 × 56,395.94
  4. Step 4: Simplify right side
    104,142.74x = 8,105,040,773.39
  5. Step 5: Solve for x
    x = 8,105,040,773.39/104,142.74
  6. Step 6: Final answer
    x = 77,826.27

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1.5x scale

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.