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Finding the Fourth Proportional to 220,572,510.80, 330,858,766.20 and 56,809,950.80

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Solution

The fourth proportional to 220,572,510.80, 330,858,766.20 and 56,809,950.80 is: 85,214,926.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,572,510.80 : 330,858,766.20 = 56,809,950.80 : x
  2. Step 2: Convert to fraction form
    220,572,510.80/330,858,766.20 = 56,809,950.80/x
  3. Step 3: Cross multiply
    220,572,510.80x = 330,858,766.20 × 56,809,950.80
  4. Step 4: Simplify right side
    220,572,510.80x = 18,796,070,229,570,700
  5. Step 5: Solve for x
    x = 18,796,070,229,570,700/220,572,510.80
  6. Step 6: Final answer
    x = 85,214,926.20

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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.