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Finding the Fourth Proportional to 66,492.90, 99,656.19 and 33,222.33

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Solution

The fourth proportional to 66,492.90, 99,656.19 and 33,222.33 is: 49,791.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,492.90 : 99,656.19 = 33,222.33 : x
  2. Step 2: Convert to fraction form
    66,492.90/99,656.19 = 33,222.33/x
  3. Step 3: Cross multiply
    66,492.90x = 99,656.19 × 33,222.33
  4. Step 4: Simplify right side
    66,492.90x = 3,310,810,830.72
  5. Step 5: Solve for x
    x = 3,310,810,830.72/66,492.90
  6. Step 6: Final answer
    x = 49,791.95

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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.