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Finding the Fourth Proportional to 74,533.87, 111,847.95 and 67,528.02

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Solution

The fourth proportional to 74,533.87, 111,847.95 and 67,528.02 is: 101,334.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,533.87 : 111,847.95 = 67,528.02 : x
  2. Step 2: Convert to fraction form
    74,533.87/111,847.95 = 67,528.02/x
  3. Step 3: Cross multiply
    74,533.87x = 111,847.95 × 67,528.02
  4. Step 4: Simplify right side
    74,533.87x = 7,552,870,604.56
  5. Step 5: Solve for x
    x = 7,552,870,604.56/74,533.87
  6. Step 6: Final answer
    x = 101,334.74

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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.