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Finding the Fourth Proportional to 71,792.44, 107,682.50 and 43,705.21

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Solution

The fourth proportional to 71,792.44, 107,682.50 and 43,705.21 is: 65,554.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,792.44 : 107,682.50 = 43,705.21 : x
  2. Step 2: Convert to fraction form
    71,792.44/107,682.50 = 43,705.21/x
  3. Step 3: Cross multiply
    71,792.44x = 107,682.50 × 43,705.21
  4. Step 4: Simplify right side
    71,792.44x = 4,706,286,275.83
  5. Step 5: Solve for x
    x = 4,706,286,275.83/71,792.44
  6. Step 6: Final answer
    x = 65,554.06

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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.