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Finding the Fourth Proportional to 156,694.40, 235,041.60 and 133,074.80

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Solution

The fourth proportional to 156,694.40, 235,041.60 and 133,074.80 is: 199,612.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,694.40 : 235,041.60 = 133,074.80 : x
  2. Step 2: Convert to fraction form
    156,694.40/235,041.60 = 133,074.80/x
  3. Step 3: Cross multiply
    156,694.40x = 235,041.60 × 133,074.80
  4. Step 4: Simplify right side
    156,694.40x = 31,278,113,911.68
  5. Step 5: Solve for x
    x = 31,278,113,911.68/156,694.40
  6. Step 6: Final answer
    x = 199,612.20

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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.