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Finding the Fourth Proportional to 211,755.75, 317,633.63 and 64,011.75

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Solution

The fourth proportional to 211,755.75, 317,633.63 and 64,011.75 is: 96,017.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,755.75 : 317,633.63 = 64,011.75 : x
  2. Step 2: Convert to fraction form
    211,755.75/317,633.63 = 64,011.75/x
  3. Step 3: Cross multiply
    211,755.75x = 317,633.63 × 64,011.75
  4. Step 4: Simplify right side
    211,755.75x = 20,332,284,195.09
  5. Step 5: Solve for x
    x = 20,332,284,195.09/211,755.75
  6. Step 6: Final answer
    x = 96,017.63

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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.