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Finding the Fourth Proportional to 73,102,555.80, 109,653,833.70 and 30,002,690.70

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Solution

The fourth proportional to 73,102,555.80, 109,653,833.70 and 30,002,690.70 is: 45,004,036.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,102,555.80 : 109,653,833.70 = 30,002,690.70 : x
  2. Step 2: Convert to fraction form
    73,102,555.80/109,653,833.70 = 30,002,690.70/x
  3. Step 3: Cross multiply
    73,102,555.80x = 109,653,833.70 × 30,002,690.70
  4. Step 4: Simplify right side
    73,102,555.80x = 3,289,910,056,570,336.50
  5. Step 5: Solve for x
    x = 3,289,910,056,570,336.50/73,102,555.80
  6. Step 6: Final answer
    x = 45,004,036.05

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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.