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Finding the Fourth Proportional to 140,910.32, 211,304.03 and 53,296.88

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Solution

The fourth proportional to 140,910.32, 211,304.03 and 53,296.88 is: 79,922.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,910.32 : 211,304.03 = 53,296.88 : x
  2. Step 2: Convert to fraction form
    140,910.32/211,304.03 = 53,296.88/x
  3. Step 3: Cross multiply
    140,910.32x = 211,304.03 × 53,296.88
  4. Step 4: Simplify right side
    140,910.32x = 11,261,844,607.15
  5. Step 5: Solve for x
    x = 11,261,844,607.15/140,910.32
  6. Step 6: Final answer
    x = 79,922.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.