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Finding the Fourth Proportional to 100,492.60, 150,738.90 and 25,612.60

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Solution

The fourth proportional to 100,492.60, 150,738.90 and 25,612.60 is: 38,418.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,492.60 : 150,738.90 = 25,612.60 : x
  2. Step 2: Convert to fraction form
    100,492.60/150,738.90 = 25,612.60/x
  3. Step 3: Cross multiply
    100,492.60x = 150,738.90 × 25,612.60
  4. Step 4: Simplify right side
    100,492.60x = 3,860,815,150.14
  5. Step 5: Solve for x
    x = 3,860,815,150.14/100,492.60
  6. Step 6: Final answer
    x = 38,418.90

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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.