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Finding the Fourth Proportional to 66,929,607.20, 100,394,410.80 and 23,847,456.80

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Solution

The fourth proportional to 66,929,607.20, 100,394,410.80 and 23,847,456.80 is: 35,771,185.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,929,607.20 : 100,394,410.80 = 23,847,456.80 : x
  2. Step 2: Convert to fraction form
    66,929,607.20/100,394,410.80 = 23,847,456.80/x
  3. Step 3: Cross multiply
    66,929,607.20x = 100,394,410.80 × 23,847,456.80
  4. Step 4: Simplify right side
    66,929,607.20x = 2,394,151,374,514,453.50
  5. Step 5: Solve for x
    x = 2,394,151,374,514,453.50/66,929,607.20
  6. Step 6: Final answer
    x = 35,771,185.20

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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.