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Finding the Fourth Proportional to 101,464.80, 140,028.84 and 58,451.28

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Solution

The fourth proportional to 101,464.80, 140,028.84 and 58,451.28 is: 80,667.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,464.80 : 140,028.84 = 58,451.28 : x
  2. Step 2: Convert to fraction form
    101,464.80/140,028.84 = 58,451.28/x
  3. Step 3: Cross multiply
    101,464.80x = 140,028.84 × 58,451.28
  4. Step 4: Simplify right side
    101,464.80x = 8,184,864,934.92
  5. Step 5: Solve for x
    x = 8,184,864,934.92/101,464.80
  6. Step 6: Final answer
    x = 80,667.04

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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.