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Finding the Fourth Proportional to 200,283.61, 276,391.82 and 109,645.22

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Solution

The fourth proportional to 200,283.61, 276,391.82 and 109,645.22 is: 151,310.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,283.61 : 276,391.82 = 109,645.22 : x
  2. Step 2: Convert to fraction form
    200,283.61/276,391.82 = 109,645.22/x
  3. Step 3: Cross multiply
    200,283.61x = 276,391.82 × 109,645.22
  4. Step 4: Simplify right side
    200,283.61x = 30,305,041,910.10
  5. Step 5: Solve for x
    x = 30,305,041,910.10/200,283.61
  6. Step 6: Final answer
    x = 151,310.64

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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.