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Finding the Fourth Proportional to 201,661.07, 278,282.16 and 111,014.70

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Solution

The fourth proportional to 201,661.07, 278,282.16 and 111,014.70 is: 153,194.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,661.07 : 278,282.16 = 111,014.70 : x
  2. Step 2: Convert to fraction form
    201,661.07/278,282.16 = 111,014.70/x
  3. Step 3: Cross multiply
    201,661.07x = 278,282.16 × 111,014.70
  4. Step 4: Simplify right side
    201,661.07x = 30,893,410,507.75
  5. Step 5: Solve for x
    x = 30,893,410,507.75/201,661.07
  6. Step 6: Final answer
    x = 153,194.72

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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.