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Finding the Fourth Proportional to 74,601.11, 111,901.68 and 71,361.63

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Solution

The fourth proportional to 74,601.11, 111,901.68 and 71,361.63 is: 107,042.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,601.11 : 111,901.68 = 71,361.63 : x
  2. Step 2: Convert to fraction form
    74,601.11/111,901.68 = 71,361.63/x
  3. Step 3: Cross multiply
    74,601.11x = 111,901.68 × 71,361.63
  4. Step 4: Simplify right side
    74,601.11x = 7,985,486,284.54
  5. Step 5: Solve for x
    x = 7,985,486,284.54/74,601.11
  6. Step 6: Final answer
    x = 107,042.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.