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Finding the Fourth Proportional to 211,480.50, 317,220.75 and 63,736.50

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Solution

The fourth proportional to 211,480.50, 317,220.75 and 63,736.50 is: 95,604.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,480.50 : 317,220.75 = 63,736.50 : x
  2. Step 2: Convert to fraction form
    211,480.50/317,220.75 = 63,736.50/x
  3. Step 3: Cross multiply
    211,480.50x = 317,220.75 × 63,736.50
  4. Step 4: Simplify right side
    211,480.50x = 20,218,540,332.38
  5. Step 5: Solve for x
    x = 20,218,540,332.38/211,480.50
  6. Step 6: Final answer
    x = 95,604.75

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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.