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Finding the Fourth Proportional to 318,571.36, 478,152.68 and 160,910.56

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Solution

The fourth proportional to 318,571.36, 478,152.68 and 160,910.56 is: 241,515.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,571.36 : 478,152.68 = 160,910.56 : x
  2. Step 2: Convert to fraction form
    318,571.36/478,152.68 = 160,910.56/x
  3. Step 3: Cross multiply
    318,571.36x = 478,152.68 × 160,910.56
  4. Step 4: Simplify right side
    318,571.36x = 76,939,815,504.30
  5. Step 5: Solve for x
    x = 76,939,815,504.30/318,571.36
  6. Step 6: Final answer
    x = 241,515.17

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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.