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Finding the Fourth Proportional to 103,994.52, 143,512.46 and 58,682.11

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Solution

The fourth proportional to 103,994.52, 143,512.46 and 58,682.11 is: 80,981.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,994.52 : 143,512.46 = 58,682.11 : x
  2. Step 2: Convert to fraction form
    103,994.52/143,512.46 = 58,682.11/x
  3. Step 3: Cross multiply
    103,994.52x = 143,512.46 × 58,682.11
  4. Step 4: Simplify right side
    103,994.52x = 8,421,613,964.09
  5. Step 5: Solve for x
    x = 8,421,613,964.09/103,994.52
  6. Step 6: Final answer
    x = 80,981.32

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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.