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Finding the Fourth Proportional to 220,395,826.80, 330,593,740.20 and 67,041,637.20

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Solution

The fourth proportional to 220,395,826.80, 330,593,740.20 and 67,041,637.20 is: 100,562,455.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,395,826.80 : 330,593,740.20 = 67,041,637.20 : x
  2. Step 2: Convert to fraction form
    220,395,826.80/330,593,740.20 = 67,041,637.20/x
  3. Step 3: Cross multiply
    220,395,826.80x = 330,593,740.20 × 67,041,637.20
  4. Step 4: Simplify right side
    220,395,826.80x = 22,163,545,591,079,456
  5. Step 5: Solve for x
    x = 22,163,545,591,079,456/220,395,826.80
  6. Step 6: Final answer
    x = 100,562,455.80

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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.