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Finding the Fourth Proportional to 53,920,912.80, 80,881,369.20 and 50,944,843.20

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Solution

The fourth proportional to 53,920,912.80, 80,881,369.20 and 50,944,843.20 is: 76,417,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,920,912.80 : 80,881,369.20 = 50,944,843.20 : x
  2. Step 2: Convert to fraction form
    53,920,912.80/80,881,369.20 = 50,944,843.20/x
  3. Step 3: Cross multiply
    53,920,912.80x = 80,881,369.20 × 50,944,843.20
  4. Step 4: Simplify right side
    53,920,912.80x = 4,120,488,671,695,310
  5. Step 5: Solve for x
    x = 4,120,488,671,695,310/53,920,912.80
  6. Step 6: Final answer
    x = 76,417,264.80

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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.