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Finding the Fourth Proportional to 220,579,619.80, 330,869,429.70 and 220,579,619.80

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Solution

The fourth proportional to 220,579,619.80, 330,869,429.70 and 220,579,619.80 is: 330,869,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,579,619.80 : 330,869,429.70 = 220,579,619.80 : x
  2. Step 2: Convert to fraction form
    220,579,619.80/330,869,429.70 = 220,579,619.80/x
  3. Step 3: Cross multiply
    220,579,619.80x = 330,869,429.70 × 220,579,619.80
  4. Step 4: Simplify right side
    220,579,619.80x = 72,983,053,006,668,832
  5. Step 5: Solve for x
    x = 72,983,053,006,668,832/220,579,619.80
  6. Step 6: Final answer
    x = 330,869,429.70

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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.