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Finding the Fourth Proportional to 254,131.62, 350,706.31 and 139,416.12

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Solution

The fourth proportional to 254,131.62, 350,706.31 and 139,416.12 is: 192,396.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,131.62 : 350,706.31 = 139,416.12 : x
  2. Step 2: Convert to fraction form
    254,131.62/350,706.31 = 139,416.12/x
  3. Step 3: Cross multiply
    254,131.62x = 350,706.31 × 139,416.12
  4. Step 4: Simplify right side
    254,131.62x = 48,894,112,999.72
  5. Step 5: Solve for x
    x = 48,894,112,999.72/254,131.62
  6. Step 6: Final answer
    x = 192,396.81

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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.