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Finding the Fourth Proportional to 104,245.79, 143,850.53 and 58,921.43

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Solution

The fourth proportional to 104,245.79, 143,850.53 and 58,921.43 is: 81,306.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,245.79 : 143,850.53 = 58,921.43 : x
  2. Step 2: Convert to fraction form
    104,245.79/143,850.53 = 58,921.43/x
  3. Step 3: Cross multiply
    104,245.79x = 143,850.53 × 58,921.43
  4. Step 4: Simplify right side
    104,245.79x = 8,475,878,361.91
  5. Step 5: Solve for x
    x = 8,475,878,361.91/104,245.79
  6. Step 6: Final answer
    x = 81,306.68

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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.