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Finding the Fourth Proportional to 71,919,228.80, 107,878,843.20 and 41,704,803.20

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Solution

The fourth proportional to 71,919,228.80, 107,878,843.20 and 41,704,803.20 is: 62,557,204.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,919,228.80 : 107,878,843.20 = 41,704,803.20 : x
  2. Step 2: Convert to fraction form
    71,919,228.80/107,878,843.20 = 41,704,803.20/x
  3. Step 3: Cross multiply
    71,919,228.80x = 107,878,843.20 × 41,704,803.20
  4. Step 4: Simplify right side
    71,919,228.80x = 4,499,065,925,099,658.50
  5. Step 5: Solve for x
    x = 4,499,065,925,099,658.50/71,919,228.80
  6. Step 6: Final answer
    x = 62,557,204.80

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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.