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Finding the Fourth Proportional to 80,510,266.80, 120,670,921.80 and 34,452,046.80

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Solution

The fourth proportional to 80,510,266.80, 120,670,921.80 and 34,452,046.80 is: 51,637,640.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,510,266.80 : 120,670,921.80 = 34,452,046.80 : x
  2. Step 2: Convert to fraction form
    80,510,266.80/120,670,921.80 = 34,452,046.80/x
  3. Step 3: Cross multiply
    80,510,266.80x = 120,670,921.80 × 34,452,046.80
  4. Step 4: Simplify right side
    80,510,266.80x = 4,157,360,245,252,740
  5. Step 5: Solve for x
    x = 4,157,360,245,252,740/80,510,266.80
  6. Step 6: Final answer
    x = 51,637,640.89

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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.