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Finding the Fourth Proportional to 2,214,781.80, 3,109,092.60 and 2,214,781.80

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Solution

The fourth proportional to 2,214,781.80, 3,109,092.60 and 2,214,781.80 is: 3,109,092.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214,781.80 : 3,109,092.60 = 2,214,781.80 : x
  2. Step 2: Convert to fraction form
    2,214,781.80/3,109,092.60 = 2,214,781.80/x
  3. Step 3: Cross multiply
    2,214,781.80x = 3,109,092.60 × 2,214,781.80
  4. Step 4: Simplify right side
    2,214,781.80x = 6,885,961,704,994.68
  5. Step 5: Solve for x
    x = 6,885,961,704,994.68/2,214,781.80
  6. Step 6: Final answer
    x = 3,109,092.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.