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Finding the Fourth Proportional to 248,879.46, 343,454.00 and 135,702.21

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Solution

The fourth proportional to 248,879.46, 343,454.00 and 135,702.21 is: 187,269.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,879.46 : 343,454.00 = 135,702.21 : x
  2. Step 2: Convert to fraction form
    248,879.46/343,454.00 = 135,702.21/x
  3. Step 3: Cross multiply
    248,879.46x = 343,454.00 × 135,702.21
  4. Step 4: Simplify right side
    248,879.46x = 46,607,466,858.48
  5. Step 5: Solve for x
    x = 46,607,466,858.48/248,879.46
  6. Step 6: Final answer
    x = 187,269.24

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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.