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Finding the Fourth Proportional to 100,627.40, 150,982.68 and 50,680.64

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Solution

The fourth proportional to 100,627.40, 150,982.68 and 50,680.64 is: 76,041.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,627.40 : 150,982.68 = 50,680.64 : x
  2. Step 2: Convert to fraction form
    100,627.40/150,982.68 = 50,680.64/x
  3. Step 3: Cross multiply
    100,627.40x = 150,982.68 × 50,680.64
  4. Step 4: Simplify right side
    100,627.40x = 7,651,898,851.32
  5. Step 5: Solve for x
    x = 7,651,898,851.32/100,627.40
  6. Step 6: Final answer
    x = 76,041.90

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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.