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Finding the Fourth Proportional to 298,064.80, 447,097.20 and 111,037.60

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Solution

The fourth proportional to 298,064.80, 447,097.20 and 111,037.60 is: 166,556.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,064.80 : 447,097.20 = 111,037.60 : x
  2. Step 2: Convert to fraction form
    298,064.80/447,097.20 = 111,037.60/x
  3. Step 3: Cross multiply
    298,064.80x = 447,097.20 × 111,037.60
  4. Step 4: Simplify right side
    298,064.80x = 49,644,600,054.72
  5. Step 5: Solve for x
    x = 49,644,600,054.72/298,064.80
  6. Step 6: Final answer
    x = 166,556.40

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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.