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Finding the Fourth Proportional to 255,604.15, 352,725.87 and 160,163.47

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Solution

The fourth proportional to 255,604.15, 352,725.87 and 160,163.47 is: 221,020.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,604.15 : 352,725.87 = 160,163.47 : x
  2. Step 2: Convert to fraction form
    255,604.15/352,725.87 = 160,163.47/x
  3. Step 3: Cross multiply
    255,604.15x = 352,725.87 × 160,163.47
  4. Step 4: Simplify right side
    255,604.15x = 56,493,799,297.97
  5. Step 5: Solve for x
    x = 56,493,799,297.97/255,604.15
  6. Step 6: Final answer
    x = 221,020.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.