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Finding the Fourth Proportional to 104,297.80, 143,877.98 and 65,992.80

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Solution

The fourth proportional to 104,297.80, 143,877.98 and 65,992.80 is: 91,036.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,297.80 : 143,877.98 = 65,992.80 : x
  2. Step 2: Convert to fraction form
    104,297.80/143,877.98 = 65,992.80/x
  3. Step 3: Cross multiply
    104,297.80x = 143,877.98 × 65,992.80
  4. Step 4: Simplify right side
    104,297.80x = 9,494,910,758.54
  5. Step 5: Solve for x
    x = 9,494,910,758.54/104,297.80
  6. Step 6: Final answer
    x = 91,036.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.