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Finding the Fourth Proportional to 248,768.70, 373,152.78 and 61,780.20

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Solution

The fourth proportional to 248,768.70, 373,152.78 and 61,780.20 is: 92,670.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,768.70 : 373,152.78 = 61,780.20 : x
  2. Step 2: Convert to fraction form
    248,768.70/373,152.78 = 61,780.20/x
  3. Step 3: Cross multiply
    248,768.70x = 373,152.78 × 61,780.20
  4. Step 4: Simplify right side
    248,768.70x = 23,053,453,378.96
  5. Step 5: Solve for x
    x = 23,053,453,378.96/248,768.70
  6. Step 6: Final answer
    x = 92,670.23

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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.