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Finding the Fourth Proportional to 73,993,691.60, 110,990,537.40 and 70,970,382.80

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Solution

The fourth proportional to 73,993,691.60, 110,990,537.40 and 70,970,382.80 is: 106,455,574.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,993,691.60 : 110,990,537.40 = 70,970,382.80 : x
  2. Step 2: Convert to fraction form
    73,993,691.60/110,990,537.40 = 70,970,382.80/x
  3. Step 3: Cross multiply
    73,993,691.60x = 110,990,537.40 × 70,970,382.80
  4. Step 4: Simplify right side
    73,993,691.60x = 7,877,040,926,455,717
  5. Step 5: Solve for x
    x = 7,877,040,926,455,717/73,993,691.60
  6. Step 6: Final answer
    x = 106,455,574.20

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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.