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Finding the Fourth Proportional to 68,758.80, 103,089.60 and 26,622.60

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Solution

The fourth proportional to 68,758.80, 103,089.60 and 26,622.60 is: 39,915.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,758.80 : 103,089.60 = 26,622.60 : x
  2. Step 2: Convert to fraction form
    68,758.80/103,089.60 = 26,622.60/x
  3. Step 3: Cross multiply
    68,758.80x = 103,089.60 × 26,622.60
  4. Step 4: Simplify right side
    68,758.80x = 2,744,513,184.96
  5. Step 5: Solve for x
    x = 2,744,513,184.96/68,758.80
  6. Step 6: Final answer
    x = 39,915.08

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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.