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Finding the Fourth Proportional to 148,551.20, 222,855.60 and 74,679.20

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Solution

The fourth proportional to 148,551.20, 222,855.60 and 74,679.20 is: 112,033.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,551.20 : 222,855.60 = 74,679.20 : x
  2. Step 2: Convert to fraction form
    148,551.20/222,855.60 = 74,679.20/x
  3. Step 3: Cross multiply
    148,551.20x = 222,855.60 × 74,679.20
  4. Step 4: Simplify right side
    148,551.20x = 16,642,677,923.52
  5. Step 5: Solve for x
    x = 16,642,677,923.52/148,551.20
  6. Step 6: Final answer
    x = 112,033.28

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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.