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Finding the Fourth Proportional to 74,859,843.60, 112,100,808.60 and 49,161,718.80

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Solution

The fourth proportional to 74,859,843.60, 112,100,808.60 and 49,161,718.80 is: 73,618,487.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,859,843.60 : 112,100,808.60 = 49,161,718.80 : x
  2. Step 2: Convert to fraction form
    74,859,843.60/112,100,808.60 = 49,161,718.80/x
  3. Step 3: Cross multiply
    74,859,843.60x = 112,100,808.60 × 49,161,718.80
  4. Step 4: Simplify right side
    74,859,843.60x = 5,511,068,429,645,821
  5. Step 5: Solve for x
    x = 5,511,068,429,645,821/74,859,843.60
  6. Step 6: Final answer
    x = 73,618,487.09

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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.