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Finding the Fourth Proportional to 44,664,652.40, 66,996,978.60 and 19,108,245.20

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Solution

The fourth proportional to 44,664,652.40, 66,996,978.60 and 19,108,245.20 is: 28,662,367.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,664,652.40 : 66,996,978.60 = 19,108,245.20 : x
  2. Step 2: Convert to fraction form
    44,664,652.40/66,996,978.60 = 19,108,245.20/x
  3. Step 3: Cross multiply
    44,664,652.40x = 66,996,978.60 × 19,108,245.20
  4. Step 4: Simplify right side
    44,664,652.40x = 1,280,194,694,747,952.75
  5. Step 5: Solve for x
    x = 1,280,194,694,747,952.75/44,664,652.40
  6. Step 6: Final answer
    x = 28,662,367.80

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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.