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Finding the Fourth Proportional to 245,693.70, 368,540.55 and 166,961.70

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Solution

The fourth proportional to 245,693.70, 368,540.55 and 166,961.70 is: 250,442.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,693.70 : 368,540.55 = 166,961.70 : x
  2. Step 2: Convert to fraction form
    245,693.70/368,540.55 = 166,961.70/x
  3. Step 3: Cross multiply
    245,693.70x = 368,540.55 × 166,961.70
  4. Step 4: Simplify right side
    245,693.70x = 61,532,156,746.94
  5. Step 5: Solve for x
    x = 61,532,156,746.94/245,693.70
  6. Step 6: Final answer
    x = 250,442.55

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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.