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Finding the Fourth Proportional to 277,786.58, 416,680.08 and 67,424.72

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Solution

The fourth proportional to 277,786.58, 416,680.08 and 67,424.72 is: 101,137.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,786.58 : 416,680.08 = 67,424.72 : x
  2. Step 2: Convert to fraction form
    277,786.58/416,680.08 = 67,424.72/x
  3. Step 3: Cross multiply
    277,786.58x = 416,680.08 × 67,424.72
  4. Step 4: Simplify right side
    277,786.58x = 28,094,537,723.58
  5. Step 5: Solve for x
    x = 28,094,537,723.58/277,786.58
  6. Step 6: Final answer
    x = 101,137.13

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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.