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Finding the Fourth Proportional to 104,213.90, 143,814.56 and 58,906.56

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Solution

The fourth proportional to 104,213.90, 143,814.56 and 58,906.56 is: 81,290.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,213.90 : 143,814.56 = 58,906.56 : x
  2. Step 2: Convert to fraction form
    104,213.90/143,814.56 = 58,906.56/x
  3. Step 3: Cross multiply
    104,213.90x = 143,814.56 × 58,906.56
  4. Step 4: Simplify right side
    104,213.90x = 8,471,621,007.51
  5. Step 5: Solve for x
    x = 8,471,621,007.51/104,213.90
  6. Step 6: Final answer
    x = 81,290.70

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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.