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Finding the Fourth Proportional to 201,835.81, 278,512.48 and 124,299.13

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Solution

The fourth proportional to 201,835.81, 278,512.48 and 124,299.13 is: 171,519.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,835.81 : 278,512.48 = 124,299.13 : x
  2. Step 2: Convert to fraction form
    201,835.81/278,512.48 = 124,299.13/x
  3. Step 3: Cross multiply
    201,835.81x = 278,512.48 × 124,299.13
  4. Step 4: Simplify right side
    201,835.81x = 34,618,858,958.14
  5. Step 5: Solve for x
    x = 34,618,858,958.14/201,835.81
  6. Step 6: Final answer
    x = 171,519.91

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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.