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Finding the Fourth Proportional to 74,452.42, 102,745.34 and 40,461.58

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Solution

The fourth proportional to 74,452.42, 102,745.34 and 40,461.58 is: 55,837.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,452.42 : 102,745.34 = 40,461.58 : x
  2. Step 2: Convert to fraction form
    74,452.42/102,745.34 = 40,461.58/x
  3. Step 3: Cross multiply
    74,452.42x = 102,745.34 × 40,461.58
  4. Step 4: Simplify right side
    74,452.42x = 4,157,238,180.15
  5. Step 5: Solve for x
    x = 4,157,238,180.15/74,452.42
  6. Step 6: Final answer
    x = 55,837.52

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