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Finding the Fourth Proportional to 178,136.80, 267,205.20 and 163,621.60

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Solution

The fourth proportional to 178,136.80, 267,205.20 and 163,621.60 is: 245,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,136.80 : 267,205.20 = 163,621.60 : x
  2. Step 2: Convert to fraction form
    178,136.80/267,205.20 = 163,621.60/x
  3. Step 3: Cross multiply
    178,136.80x = 267,205.20 × 163,621.60
  4. Step 4: Simplify right side
    178,136.80x = 43,720,542,352.32
  5. Step 5: Solve for x
    x = 43,720,542,352.32/178,136.80
  6. Step 6: Final answer
    x = 245,432.40

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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.