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Finding the Fourth Proportional to 74,213.87, 102,420.36 and 41,948.73

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Solution

The fourth proportional to 74,213.87, 102,420.36 and 41,948.73 is: 57,892.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,213.87 : 102,420.36 = 41,948.73 : x
  2. Step 2: Convert to fraction form
    74,213.87/102,420.36 = 41,948.73/x
  3. Step 3: Cross multiply
    74,213.87x = 102,420.36 × 41,948.73
  4. Step 4: Simplify right side
    74,213.87x = 4,296,404,015.12
  5. Step 5: Solve for x
    x = 4,296,404,015.12/74,213.87
  6. Step 6: Final answer
    x = 57,892.20

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1.5x scale

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.