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Finding the Fourth Proportional to 178,771.40, 268,157.10 and 54,112.40

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Solution

The fourth proportional to 178,771.40, 268,157.10 and 54,112.40 is: 81,168.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,771.40 : 268,157.10 = 54,112.40 : x
  2. Step 2: Convert to fraction form
    178,771.40/268,157.10 = 54,112.40/x
  3. Step 3: Cross multiply
    178,771.40x = 268,157.10 × 54,112.40
  4. Step 4: Simplify right side
    178,771.40x = 14,510,624,258.04
  5. Step 5: Solve for x
    x = 14,510,624,258.04/178,771.40
  6. Step 6: Final answer
    x = 81,168.60

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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.