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Finding the Fourth Proportional to 66,504.98, 99,735.68 and 22,119.50

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Solution

The fourth proportional to 66,504.98, 99,735.68 and 22,119.50 is: 33,172.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,504.98 : 99,735.68 = 22,119.50 : x
  2. Step 2: Convert to fraction form
    66,504.98/99,735.68 = 22,119.50/x
  3. Step 3: Cross multiply
    66,504.98x = 99,735.68 × 22,119.50
  4. Step 4: Simplify right side
    66,504.98x = 2,206,103,373.76
  5. Step 5: Solve for x
    x = 2,206,103,373.76/66,504.98
  6. Step 6: Final answer
    x = 33,172.00

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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.