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Finding the Fourth Proportional to 68,522.88, 102,802.24 and 29,081.60

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Solution

The fourth proportional to 68,522.88, 102,802.24 and 29,081.60 is: 43,630.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,522.88 : 102,802.24 = 29,081.60 : x
  2. Step 2: Convert to fraction form
    68,522.88/102,802.24 = 29,081.60/x
  3. Step 3: Cross multiply
    68,522.88x = 102,802.24 × 29,081.60
  4. Step 4: Simplify right side
    68,522.88x = 2,989,653,622.78
  5. Step 5: Solve for x
    x = 2,989,653,622.78/68,522.88
  6. Step 6: Final answer
    x = 43,630.01

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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.