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Finding the Fourth Proportional to 61,205,221.30, 85,800,683.90 and 61,205,221.30

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Solution

The fourth proportional to 61,205,221.30, 85,800,683.90 and 61,205,221.30 is: 85,800,683.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,205,221.30 : 85,800,683.90 = 61,205,221.30 : x
  2. Step 2: Convert to fraction form
    61,205,221.30/85,800,683.90 = 61,205,221.30/x
  3. Step 3: Cross multiply
    61,205,221.30x = 85,800,683.90 × 61,205,221.30
  4. Step 4: Simplify right side
    61,205,221.30x = 5,251,449,845,790,847
  5. Step 5: Solve for x
    x = 5,251,449,845,790,847/61,205,221.30
  6. Step 6: Final answer
    x = 85,800,683.90

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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.