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Finding the Fourth Proportional to 80,641,226.80, 120,961,840.20 and 44,361,521.20

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Solution

The fourth proportional to 80,641,226.80, 120,961,840.20 and 44,361,521.20 is: 66,542,281.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,641,226.80 : 120,961,840.20 = 44,361,521.20 : x
  2. Step 2: Convert to fraction form
    80,641,226.80/120,961,840.20 = 44,361,521.20/x
  3. Step 3: Cross multiply
    80,641,226.80x = 120,961,840.20 × 44,361,521.20
  4. Step 4: Simplify right side
    80,641,226.80x = 5,366,051,238,423,313
  5. Step 5: Solve for x
    x = 5,366,051,238,423,313/80,641,226.80
  6. Step 6: Final answer
    x = 66,542,281.80

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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.