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Finding the Fourth Proportional to 74,763, 103,172.94 and 41,231.16

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Solution

The fourth proportional to 74,763, 103,172.94 and 41,231.16 is: 56,899.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,763 : 103,172.94 = 41,231.16 : x
  2. Step 2: Convert to fraction form
    74,763/103,172.94 = 41,231.16/x
  3. Step 3: Cross multiply
    74,763x = 103,172.94 × 41,231.16
  4. Step 4: Simplify right side
    74,763x = 4,253,939,996.81
  5. Step 5: Solve for x
    x = 4,253,939,996.81/74,763
  6. Step 6: Final answer
    x = 56,899.00

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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.