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Finding the Fourth Proportional to 233,626.40, 350,439.60 and 85,863.20

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Solution

The fourth proportional to 233,626.40, 350,439.60 and 85,863.20 is: 128,794.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,626.40 : 350,439.60 = 85,863.20 : x
  2. Step 2: Convert to fraction form
    233,626.40/350,439.60 = 85,863.20/x
  3. Step 3: Cross multiply
    233,626.40x = 350,439.60 × 85,863.20
  4. Step 4: Simplify right side
    233,626.40x = 30,089,865,462.72
  5. Step 5: Solve for x
    x = 30,089,865,462.72/233,626.40
  6. Step 6: Final answer
    x = 128,794.80

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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.