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Finding the Fourth Proportional to 69,876,043.20, 104,814,064.80 and 44,429,860.80

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Solution

The fourth proportional to 69,876,043.20, 104,814,064.80 and 44,429,860.80 is: 66,644,791.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,876,043.20 : 104,814,064.80 = 44,429,860.80 : x
  2. Step 2: Convert to fraction form
    69,876,043.20/104,814,064.80 = 44,429,860.80/x
  3. Step 3: Cross multiply
    69,876,043.20x = 104,814,064.80 × 44,429,860.80
  4. Step 4: Simplify right side
    69,876,043.20x = 4,656,874,308,946,179
  5. Step 5: Solve for x
    x = 4,656,874,308,946,179/69,876,043.20
  6. Step 6: Final answer
    x = 66,644,791.20

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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.