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Finding the Fourth Proportional to 1,661,103.90, 2,327,120.10 and 1,661,103.90

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Solution

The fourth proportional to 1,661,103.90, 2,327,120.10 and 1,661,103.90 is: 2,327,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661,103.90 : 2,327,120.10 = 1,661,103.90 : x
  2. Step 2: Convert to fraction form
    1,661,103.90/2,327,120.10 = 1,661,103.90/x
  3. Step 3: Cross multiply
    1,661,103.90x = 2,327,120.10 × 1,661,103.90
  4. Step 4: Simplify right side
    1,661,103.90x = 3,865,588,273,878.39
  5. Step 5: Solve for x
    x = 3,865,588,273,878.39/1,661,103.90
  6. Step 6: Final answer
    x = 2,327,120.10

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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.