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Finding the Fourth Proportional to 313,242.99, 469,759.19 and 113,521.56

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Solution

The fourth proportional to 313,242.99, 469,759.19 and 113,521.56 is: 170,244.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,242.99 : 469,759.19 = 113,521.56 : x
  2. Step 2: Convert to fraction form
    313,242.99/469,759.19 = 113,521.56/x
  3. Step 3: Cross multiply
    313,242.99x = 469,759.19 × 113,521.56
  4. Step 4: Simplify right side
    313,242.99x = 53,327,795,505.53
  5. Step 5: Solve for x
    x = 53,327,795,505.53/313,242.99
  6. Step 6: Final answer
    x = 170,244.18

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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.