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Finding the Fourth Proportional to 68,855.00, 103,311.65 and 37,653.80

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Solution

The fourth proportional to 68,855.00, 103,311.65 and 37,653.80 is: 56,496.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,855.00 : 103,311.65 = 37,653.80 : x
  2. Step 2: Convert to fraction form
    68,855.00/103,311.65 = 37,653.80/x
  3. Step 3: Cross multiply
    68,855.00x = 103,311.65 × 37,653.80
  4. Step 4: Simplify right side
    68,855.00x = 3,890,075,784.35
  5. Step 5: Solve for x
    x = 3,890,075,784.35/68,855.00
  6. Step 6: Final answer
    x = 56,496.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.