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Finding the Fourth Proportional to 451,714,162.80, 677,557,247.40 and 128,598,034.80

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Solution

The fourth proportional to 451,714,162.80, 677,557,247.40 and 128,598,034.80 is: 192,893,067.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,714,162.80 : 677,557,247.40 = 128,598,034.80 : x
  2. Step 2: Convert to fraction form
    451,714,162.80/677,557,247.40 = 128,598,034.80/x
  3. Step 3: Cross multiply
    451,714,162.80x = 677,557,247.40 × 128,598,034.80
  4. Step 4: Simplify right side
    451,714,162.80x = 87,132,530,480,137,408
  5. Step 5: Solve for x
    x = 87,132,530,480,137,408/451,714,162.80
  6. Step 6: Final answer
    x = 192,893,067.47

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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.