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Finding the Fourth Proportional to 188,830.60, 283,245.90 and 83,537.80

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Solution

The fourth proportional to 188,830.60, 283,245.90 and 83,537.80 is: 125,306.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,830.60 : 283,245.90 = 83,537.80 : x
  2. Step 2: Convert to fraction form
    188,830.60/283,245.90 = 83,537.80/x
  3. Step 3: Cross multiply
    188,830.60x = 283,245.90 × 83,537.80
  4. Step 4: Simplify right side
    188,830.60x = 23,661,739,345.02
  5. Step 5: Solve for x
    x = 23,661,739,345.02/188,830.60
  6. Step 6: Final answer
    x = 125,306.70

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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.