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Finding the Fourth Proportional to 104,202.19, 143,805.09 and 58,879

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Solution

The fourth proportional to 104,202.19, 143,805.09 and 58,879 is: 81,256.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,202.19 : 143,805.09 = 58,879 : x
  2. Step 2: Convert to fraction form
    104,202.19/143,805.09 = 58,879/x
  3. Step 3: Cross multiply
    104,202.19x = 143,805.09 × 58,879
  4. Step 4: Simplify right side
    104,202.19x = 8,467,099,894.11
  5. Step 5: Solve for x
    x = 8,467,099,894.11/104,202.19
  6. Step 6: Final answer
    x = 81,256.45

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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.