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Finding the Fourth Proportional to 73,811,807.80, 110,717,711.70 and 30,711,942.70

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Solution

The fourth proportional to 73,811,807.80, 110,717,711.70 and 30,711,942.70 is: 46,067,914.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,811,807.80 : 110,717,711.70 = 30,711,942.70 : x
  2. Step 2: Convert to fraction form
    73,811,807.80/110,717,711.70 = 30,711,942.70/x
  3. Step 3: Cross multiply
    73,811,807.80x = 110,717,711.70 × 30,711,942.70
  4. Step 4: Simplify right side
    73,811,807.80x = 3,400,356,017,605,519.50
  5. Step 5: Solve for x
    x = 3,400,356,017,605,519.50/73,811,807.80
  6. Step 6: Final answer
    x = 46,067,914.05

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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.