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Finding the Fourth Proportional to 321,367.70, 443,474.70 and 176,170.34

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Solution

The fourth proportional to 321,367.70, 443,474.70 and 176,170.34 is: 243,108.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,367.70 : 443,474.70 = 176,170.34 : x
  2. Step 2: Convert to fraction form
    321,367.70/443,474.70 = 176,170.34/x
  3. Step 3: Cross multiply
    321,367.70x = 443,474.70 × 176,170.34
  4. Step 4: Simplify right side
    321,367.70x = 78,127,089,128.45
  5. Step 5: Solve for x
    x = 78,127,089,128.45/321,367.70
  6. Step 6: Final answer
    x = 243,108.09

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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.