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Finding the Fourth Proportional to 247,915.64, 342,126.24 and 134,738.44

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Solution

The fourth proportional to 247,915.64, 342,126.24 and 134,738.44 is: 185,940.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,915.64 : 342,126.24 = 134,738.44 : x
  2. Step 2: Convert to fraction form
    247,915.64/342,126.24 = 134,738.44/x
  3. Step 3: Cross multiply
    247,915.64x = 342,126.24 × 134,738.44
  4. Step 4: Simplify right side
    247,915.64x = 46,097,555,860.67
  5. Step 5: Solve for x
    x = 46,097,555,860.67/247,915.64
  6. Step 6: Final answer
    x = 185,940.49

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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.