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Finding the Fourth Proportional to 318,061.44, 477,170.28 and 158,212.80

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Solution

The fourth proportional to 318,061.44, 477,170.28 and 158,212.80 is: 237,358.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,061.44 : 477,170.28 = 158,212.80 : x
  2. Step 2: Convert to fraction form
    318,061.44/477,170.28 = 158,212.80/x
  3. Step 3: Cross multiply
    318,061.44x = 477,170.28 × 158,212.80
  4. Step 4: Simplify right side
    318,061.44x = 75,494,446,075.58
  5. Step 5: Solve for x
    x = 75,494,446,075.58/318,061.44
  6. Step 6: Final answer
    x = 237,358.06

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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.