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Finding the Fourth Proportional to 201,626.83, 278,242.80 and 110,980.84

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Solution

The fourth proportional to 201,626.83, 278,242.80 and 110,980.84 is: 153,152.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,626.83 : 278,242.80 = 110,980.84 : x
  2. Step 2: Convert to fraction form
    201,626.83/278,242.80 = 110,980.84/x
  3. Step 3: Cross multiply
    201,626.83x = 278,242.80 × 110,980.84
  4. Step 4: Simplify right side
    201,626.83x = 30,879,619,667.95
  5. Step 5: Solve for x
    x = 30,879,619,667.95/201,626.83
  6. Step 6: Final answer
    x = 153,152.33

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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.