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Finding the Fourth Proportional to 73,813,321.80, 110,719,982.70 and 70,454,089.80

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Solution

The fourth proportional to 73,813,321.80, 110,719,982.70 and 70,454,089.80 is: 105,681,134.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,813,321.80 : 110,719,982.70 = 70,454,089.80 : x
  2. Step 2: Convert to fraction form
    73,813,321.80/110,719,982.70 = 70,454,089.80/x
  3. Step 3: Cross multiply
    73,813,321.80x = 110,719,982.70 × 70,454,089.80
  4. Step 4: Simplify right side
    73,813,321.80x = 7,800,675,603,800,246
  5. Step 5: Solve for x
    x = 7,800,675,603,800,246/73,813,321.80
  6. Step 6: Final answer
    x = 105,681,134.70

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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.