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Finding the Fourth Proportional to 254,085.44, 350,635.50 and 139,361.72

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Solution

The fourth proportional to 254,085.44, 350,635.50 and 139,361.72 is: 192,317.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,085.44 : 350,635.50 = 139,361.72 : x
  2. Step 2: Convert to fraction form
    254,085.44/350,635.50 = 139,361.72/x
  3. Step 3: Cross multiply
    254,085.44x = 350,635.50 × 139,361.72
  4. Step 4: Simplify right side
    254,085.44x = 48,865,166,373.06
  5. Step 5: Solve for x
    x = 48,865,166,373.06/254,085.44
  6. Step 6: Final answer
    x = 192,317.85

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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.