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Finding the Fourth Proportional to 68,476.88, 102,768.88 and 35,195.60

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Solution

The fourth proportional to 68,476.88, 102,768.88 and 35,195.60 is: 52,820.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,476.88 : 102,768.88 = 35,195.60 : x
  2. Step 2: Convert to fraction form
    68,476.88/102,768.88 = 35,195.60/x
  3. Step 3: Cross multiply
    68,476.88x = 102,768.88 × 35,195.60
  4. Step 4: Simplify right side
    68,476.88x = 3,617,012,392.93
  5. Step 5: Solve for x
    x = 3,617,012,392.93/68,476.88
  6. Step 6: Final answer
    x = 52,820.93

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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.