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Finding the Fourth Proportional to 115,781.60, 173,656.20 and 36,903.80

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Solution

The fourth proportional to 115,781.60, 173,656.20 and 36,903.80 is: 55,350.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,781.60 : 173,656.20 = 36,903.80 : x
  2. Step 2: Convert to fraction form
    115,781.60/173,656.20 = 36,903.80/x
  3. Step 3: Cross multiply
    115,781.60x = 173,656.20 × 36,903.80
  4. Step 4: Simplify right side
    115,781.60x = 6,408,573,673.56
  5. Step 5: Solve for x
    x = 6,408,573,673.56/115,781.60
  6. Step 6: Final answer
    x = 55,350.54

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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.