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Finding the Fourth Proportional to 311,843.10, 467,775.45 and 98,613.30

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Solution

The fourth proportional to 311,843.10, 467,775.45 and 98,613.30 is: 147,923.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,843.10 : 467,775.45 = 98,613.30 : x
  2. Step 2: Convert to fraction form
    311,843.10/467,775.45 = 98,613.30/x
  3. Step 3: Cross multiply
    311,843.10x = 467,775.45 × 98,613.30
  4. Step 4: Simplify right side
    311,843.10x = 46,128,880,783.49
  5. Step 5: Solve for x
    x = 46,128,880,783.49/311,843.10
  6. Step 6: Final answer
    x = 147,923.37

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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.