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Finding the Fourth Proportional to 66,674.54, 99,990.96 and 22,290.95

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Solution

The fourth proportional to 66,674.54, 99,990.96 and 22,290.95 is: 33,429.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,674.54 : 99,990.96 = 22,290.95 : x
  2. Step 2: Convert to fraction form
    66,674.54/99,990.96 = 22,290.95/x
  3. Step 3: Cross multiply
    66,674.54x = 99,990.96 × 22,290.95
  4. Step 4: Simplify right side
    66,674.54x = 2,228,893,093.75
  5. Step 5: Solve for x
    x = 2,228,893,093.75/66,674.54
  6. Step 6: Final answer
    x = 33,429.45

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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.