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Finding the Fourth Proportional to 201,944.70, 278,682.39 and 111,300.75

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Solution

The fourth proportional to 201,944.70, 278,682.39 and 111,300.75 is: 153,594.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,944.70 : 278,682.39 = 111,300.75 : x
  2. Step 2: Convert to fraction form
    201,944.70/278,682.39 = 111,300.75/x
  3. Step 3: Cross multiply
    201,944.70x = 278,682.39 × 111,300.75
  4. Step 4: Simplify right side
    201,944.70x = 31,017,559,018.79
  5. Step 5: Solve for x
    x = 31,017,559,018.79/201,944.70
  6. Step 6: Final answer
    x = 153,594.32

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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.