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Finding the Fourth Proportional to 200,464, 276,640.92 and 111,040

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Solution

The fourth proportional to 200,464, 276,640.92 and 111,040 is: 153,235.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,464 : 276,640.92 = 111,040 : x
  2. Step 2: Convert to fraction form
    200,464/276,640.92 = 111,040/x
  3. Step 3: Cross multiply
    200,464x = 276,640.92 × 111,040
  4. Step 4: Simplify right side
    200,464x = 30,718,207,756.80
  5. Step 5: Solve for x
    x = 30,718,207,756.80/200,464
  6. Step 6: Final answer
    x = 153,235.53

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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.