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Finding the Fourth Proportional to 201,673.36, 278,304.15 and 111,028.42

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Solution

The fourth proportional to 201,673.36, 278,304.15 and 111,028.42 is: 153,216.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,673.36 : 278,304.15 = 111,028.42 : x
  2. Step 2: Convert to fraction form
    201,673.36/278,304.15 = 111,028.42/x
  3. Step 3: Cross multiply
    201,673.36x = 278,304.15 × 111,028.42
  4. Step 4: Simplify right side
    201,673.36x = 30,899,670,053.94
  5. Step 5: Solve for x
    x = 30,899,670,053.94/201,673.36
  6. Step 6: Final answer
    x = 153,216.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.