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Finding the Fourth Proportional to 66,603.45, 99,906.27 and 22,230.43

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Solution

The fourth proportional to 66,603.45, 99,906.27 and 22,230.43 is: 33,346.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,603.45 : 99,906.27 = 22,230.43 : x
  2. Step 2: Convert to fraction form
    66,603.45/99,906.27 = 22,230.43/x
  3. Step 3: Cross multiply
    66,603.45x = 99,906.27 × 22,230.43
  4. Step 4: Simplify right side
    66,603.45x = 2,220,959,341.80
  5. Step 5: Solve for x
    x = 2,220,959,341.80/66,603.45
  6. Step 6: Final answer
    x = 33,346.01

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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.