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Finding the Fourth Proportional to 160,706.19, 221,729.67 and 126,608.85

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Solution

The fourth proportional to 160,706.19, 221,729.67 and 126,608.85 is: 174,684.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,706.19 : 221,729.67 = 126,608.85 : x
  2. Step 2: Convert to fraction form
    160,706.19/221,729.67 = 126,608.85/x
  3. Step 3: Cross multiply
    160,706.19x = 221,729.67 × 126,608.85
  4. Step 4: Simplify right side
    160,706.19x = 28,072,939,835.85
  5. Step 5: Solve for x
    x = 28,072,939,835.85/160,706.19
  6. Step 6: Final answer
    x = 174,684.87

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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.