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Finding the Fourth Proportional to 72,222.35, 99,625.07 and 43,522.43

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Solution

The fourth proportional to 72,222.35, 99,625.07 and 43,522.43 is: 60,035.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,222.35 : 99,625.07 = 43,522.43 : x
  2. Step 2: Convert to fraction form
    72,222.35/99,625.07 = 43,522.43/x
  3. Step 3: Cross multiply
    72,222.35x = 99,625.07 × 43,522.43
  4. Step 4: Simplify right side
    72,222.35x = 4,335,924,746.00
  5. Step 5: Solve for x
    x = 4,335,924,746.00/72,222.35
  6. Step 6: Final answer
    x = 60,035.78

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