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Finding the Fourth Proportional to 200,571.12, 276,786 and 109,932.12

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Solution

The fourth proportional to 200,571.12, 276,786 and 109,932.12 is: 151,705.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,571.12 : 276,786 = 109,932.12 : x
  2. Step 2: Convert to fraction form
    200,571.12/276,786 = 109,932.12/x
  3. Step 3: Cross multiply
    200,571.12x = 276,786 × 109,932.12
  4. Step 4: Simplify right side
    200,571.12x = 30,427,671,766.32
  5. Step 5: Solve for x
    x = 30,427,671,766.32/200,571.12
  6. Step 6: Final answer
    x = 151,705.15

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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.