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Finding the Fourth Proportional to 188,889.60, 283,436.80 and 83,724.80

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Solution

The fourth proportional to 188,889.60, 283,436.80 and 83,724.80 is: 125,632.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,889.60 : 283,436.80 = 83,724.80 : x
  2. Step 2: Convert to fraction form
    188,889.60/283,436.80 = 83,724.80/x
  3. Step 3: Cross multiply
    188,889.60x = 283,436.80 × 83,724.80
  4. Step 4: Simplify right side
    188,889.60x = 23,730,689,392.64
  5. Step 5: Solve for x
    x = 23,730,689,392.64/188,889.60
  6. Step 6: Final answer
    x = 125,632.59

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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.