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Finding the Fourth Proportional to 248,671.89, 373,060.89 and 80,201.70

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Solution

The fourth proportional to 248,671.89, 373,060.89 and 80,201.70 is: 120,319.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,671.89 : 373,060.89 = 80,201.70 : x
  2. Step 2: Convert to fraction form
    248,671.89/373,060.89 = 80,201.70/x
  3. Step 3: Cross multiply
    248,671.89x = 373,060.89 × 80,201.70
  4. Step 4: Simplify right side
    248,671.89x = 29,920,117,581.51
  5. Step 5: Solve for x
    x = 29,920,117,581.51/248,671.89
  6. Step 6: Final answer
    x = 120,319.66

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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.