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Finding the Fourth Proportional to 228,441.60, 342,662.40 and 133,574.40

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Solution

The fourth proportional to 228,441.60, 342,662.40 and 133,574.40 is: 200,361.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,441.60 : 342,662.40 = 133,574.40 : x
  2. Step 2: Convert to fraction form
    228,441.60/342,662.40 = 133,574.40/x
  3. Step 3: Cross multiply
    228,441.60x = 342,662.40 × 133,574.40
  4. Step 4: Simplify right side
    228,441.60x = 45,770,924,482.56
  5. Step 5: Solve for x
    x = 45,770,924,482.56/228,441.60
  6. Step 6: Final answer
    x = 200,361.60

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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.