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Finding the Fourth Proportional to 104,072.25, 143,619.72 and 56,325.96

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Solution

The fourth proportional to 104,072.25, 143,619.72 and 56,325.96 is: 77,729.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,072.25 : 143,619.72 = 56,325.96 : x
  2. Step 2: Convert to fraction form
    104,072.25/143,619.72 = 56,325.96/x
  3. Step 3: Cross multiply
    104,072.25x = 143,619.72 × 56,325.96
  4. Step 4: Simplify right side
    104,072.25x = 8,089,518,603.93
  5. Step 5: Solve for x
    x = 8,089,518,603.93/104,072.25
  6. Step 6: Final answer
    x = 77,729.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.