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Finding the Fourth Proportional to 100,297,855.80, 150,446,783.70 and 57,251,134.80

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Solution

The fourth proportional to 100,297,855.80, 150,446,783.70 and 57,251,134.80 is: 85,876,702.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,297,855.80 : 150,446,783.70 = 57,251,134.80 : x
  2. Step 2: Convert to fraction form
    100,297,855.80/150,446,783.70 = 57,251,134.80/x
  3. Step 3: Cross multiply
    100,297,855.80x = 150,446,783.70 × 57,251,134.80
  4. Step 4: Simplify right side
    100,297,855.80x = 8,613,249,093,835,142
  5. Step 5: Solve for x
    x = 8,613,249,093,835,142/100,297,855.80
  6. Step 6: Final answer
    x = 85,876,702.20

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1.5x scale

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.