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Finding the Fourth Proportional to 201,280.33, 301,956.95 and 82,887.09

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Solution

The fourth proportional to 201,280.33, 301,956.95 and 82,887.09 is: 124,345.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,280.33 : 301,956.95 = 82,887.09 : x
  2. Step 2: Convert to fraction form
    201,280.33/301,956.95 = 82,887.09/x
  3. Step 3: Cross multiply
    201,280.33x = 301,956.95 × 82,887.09
  4. Step 4: Simplify right side
    201,280.33x = 25,028,332,890.78
  5. Step 5: Solve for x
    x = 25,028,332,890.78/201,280.33
  6. Step 6: Final answer
    x = 124,345.65

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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.