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Finding the Fourth Proportional to 74,431.45, 111,517.16 and 62,031.16

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Solution

The fourth proportional to 74,431.45, 111,517.16 and 62,031.16 is: 92,938.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,431.45 : 111,517.16 = 62,031.16 : x
  2. Step 2: Convert to fraction form
    74,431.45/111,517.16 = 62,031.16/x
  3. Step 3: Cross multiply
    74,431.45x = 111,517.16 × 62,031.16
  4. Step 4: Simplify right side
    74,431.45x = 6,917,538,237.12
  5. Step 5: Solve for x
    x = 6,917,538,237.12/74,431.45
  6. Step 6: Final answer
    x = 92,938.38

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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.