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Finding the Fourth Proportional to 148,429.60, 222,644.40 and 131,322.40

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Solution

The fourth proportional to 148,429.60, 222,644.40 and 131,322.40 is: 196,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,429.60 : 222,644.40 = 131,322.40 : x
  2. Step 2: Convert to fraction form
    148,429.60/222,644.40 = 131,322.40/x
  3. Step 3: Cross multiply
    148,429.60x = 222,644.40 × 131,322.40
  4. Step 4: Simplify right side
    148,429.60x = 29,238,196,954.56
  5. Step 5: Solve for x
    x = 29,238,196,954.56/148,429.60
  6. Step 6: Final answer
    x = 196,983.60

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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.