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Finding the Fourth Proportional to 200,711.80, 301,067.70 and 67,547.80

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Solution

The fourth proportional to 200,711.80, 301,067.70 and 67,547.80 is: 101,321.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,711.80 : 301,067.70 = 67,547.80 : x
  2. Step 2: Convert to fraction form
    200,711.80/301,067.70 = 67,547.80/x
  3. Step 3: Cross multiply
    200,711.80x = 301,067.70 × 67,547.80
  4. Step 4: Simplify right side
    200,711.80x = 20,336,460,786.06
  5. Step 5: Solve for x
    x = 20,336,460,786.06/200,711.80
  6. Step 6: Final answer
    x = 101,321.70

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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.