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Finding the Fourth Proportional to 178,863.20, 268,813.20 and 156,053.60

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Solution

The fourth proportional to 178,863.20, 268,813.20 and 156,053.60 is: 234,532.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,863.20 : 268,813.20 = 156,053.60 : x
  2. Step 2: Convert to fraction form
    178,863.20/268,813.20 = 156,053.60/x
  3. Step 3: Cross multiply
    178,863.20x = 268,813.20 × 156,053.60
  4. Step 4: Simplify right side
    178,863.20x = 41,949,267,587.52
  5. Step 5: Solve for x
    x = 41,949,267,587.52/178,863.20
  6. Step 6: Final answer
    x = 234,532.69

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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.