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Finding the Fourth Proportional to 351,052.13, 484,449.30 and 189,904.86

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Solution

The fourth proportional to 351,052.13, 484,449.30 and 189,904.86 is: 262,067.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,052.13 : 484,449.30 = 189,904.86 : x
  2. Step 2: Convert to fraction form
    351,052.13/484,449.30 = 189,904.86/x
  3. Step 3: Cross multiply
    351,052.13x = 484,449.30 × 189,904.86
  4. Step 4: Simplify right side
    351,052.13x = 91,999,276,493.60
  5. Step 5: Solve for x
    x = 91,999,276,493.60/351,052.13
  6. Step 6: Final answer
    x = 262,067.28

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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.