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Finding the Fourth Proportional to 61,136.70, 85,649.70 and 61,136.70

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Solution

The fourth proportional to 61,136.70, 85,649.70 and 61,136.70 is: 85,649.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,136.70 : 85,649.70 = 61,136.70 : x
  2. Step 2: Convert to fraction form
    61,136.70/85,649.70 = 61,136.70/x
  3. Step 3: Cross multiply
    61,136.70x = 85,649.70 × 61,136.70
  4. Step 4: Simplify right side
    61,136.70x = 5,236,340,013.99
  5. Step 5: Solve for x
    x = 5,236,340,013.99/61,136.70
  6. Step 6: Final answer
    x = 85,649.70

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