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Finding the Fourth Proportional to 201,609.85, 278,225.40 and 110,965.18

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Solution

The fourth proportional to 201,609.85, 278,225.40 and 110,965.18 is: 153,134.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,609.85 : 278,225.40 = 110,965.18 : x
  2. Step 2: Convert to fraction form
    201,609.85/278,225.40 = 110,965.18/x
  3. Step 3: Cross multiply
    201,609.85x = 278,225.40 × 110,965.18
  4. Step 4: Simplify right side
    201,609.85x = 30,873,331,591.57
  5. Step 5: Solve for x
    x = 30,873,331,591.57/201,609.85
  6. Step 6: Final answer
    x = 153,134.04

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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.