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Finding the Fourth Proportional to 73,993,607.70, 110,990,411.55 and 72,718,149.30

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Solution

The fourth proportional to 73,993,607.70, 110,990,411.55 and 72,718,149.30 is: 109,077,223.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,993,607.70 : 110,990,411.55 = 72,718,149.30 : x
  2. Step 2: Convert to fraction form
    73,993,607.70/110,990,411.55 = 72,718,149.30/x
  3. Step 3: Cross multiply
    73,993,607.70x = 110,990,411.55 × 72,718,149.30
  4. Step 4: Simplify right side
    73,993,607.70x = 8,071,017,317,961,344
  5. Step 5: Solve for x
    x = 8,071,017,317,961,344/73,993,607.70
  6. Step 6: Final answer
    x = 109,077,223.95

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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.