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Finding the Fourth Proportional to 65,522.22, 90,392.19 and 41,636.07

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Solution

The fourth proportional to 65,522.22, 90,392.19 and 41,636.07 is: 57,439.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,522.22 : 90,392.19 = 41,636.07 : x
  2. Step 2: Convert to fraction form
    65,522.22/90,392.19 = 41,636.07/x
  3. Step 3: Cross multiply
    65,522.22x = 90,392.19 × 41,636.07
  4. Step 4: Simplify right side
    65,522.22x = 3,763,575,550.29
  5. Step 5: Solve for x
    x = 3,763,575,550.29/65,522.22
  6. Step 6: Final answer
    x = 57,439.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.