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Finding the Fourth Proportional to 66,071.67, 99,141.72 and 32,791.06

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Solution

The fourth proportional to 66,071.67, 99,141.72 and 32,791.06 is: 49,203.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,071.67 : 99,141.72 = 32,791.06 : x
  2. Step 2: Convert to fraction form
    66,071.67/99,141.72 = 32,791.06/x
  3. Step 3: Cross multiply
    66,071.67x = 99,141.72 × 32,791.06
  4. Step 4: Simplify right side
    66,071.67x = 3,250,962,089.02
  5. Step 5: Solve for x
    x = 3,250,962,089.02/66,071.67
  6. Step 6: Final answer
    x = 49,203.57

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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.