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Finding the Fourth Proportional to 37,791,056.80, 56,644,594.80 and 20,763,949.60

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Solution

The fourth proportional to 37,791,056.80, 56,644,594.80 and 20,763,949.60 is: 31,122,853.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,791,056.80 : 56,644,594.80 = 20,763,949.60 : x
  2. Step 2: Convert to fraction form
    37,791,056.80/56,644,594.80 = 20,763,949.60/x
  3. Step 3: Cross multiply
    37,791,056.80x = 56,644,594.80 × 20,763,949.60
  4. Step 4: Simplify right side
    37,791,056.80x = 1,176,165,511,539,622
  5. Step 5: Solve for x
    x = 1,176,165,511,539,622/37,791,056.80
  6. Step 6: Final answer
    x = 31,122,853.16

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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.