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Finding the Fourth Proportional to 115,538.80, 173,308.20 and 36,659.20

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Solution

The fourth proportional to 115,538.80, 173,308.20 and 36,659.20 is: 54,988.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,538.80 : 173,308.20 = 36,659.20 : x
  2. Step 2: Convert to fraction form
    115,538.80/173,308.20 = 36,659.20/x
  3. Step 3: Cross multiply
    115,538.80x = 173,308.20 × 36,659.20
  4. Step 4: Simplify right side
    115,538.80x = 6,353,339,965.44
  5. Step 5: Solve for x
    x = 6,353,339,965.44/115,538.80
  6. Step 6: Final answer
    x = 54,988.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.