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Finding the Fourth Proportional to 78,704.82, 118,126.50 and 41,291.64

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Solution

The fourth proportional to 78,704.82, 118,126.50 and 41,291.64 is: 61,973.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,704.82 : 118,126.50 = 41,291.64 : x
  2. Step 2: Convert to fraction form
    78,704.82/118,126.50 = 41,291.64/x
  3. Step 3: Cross multiply
    78,704.82x = 118,126.50 × 41,291.64
  4. Step 4: Simplify right side
    78,704.82x = 4,877,636,912.46
  5. Step 5: Solve for x
    x = 4,877,636,912.46/78,704.82
  6. Step 6: Final answer
    x = 61,973.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.