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Finding the Fourth Proportional to 248,753.50, 343,279.53 and 135,576.25

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Solution

The fourth proportional to 248,753.50, 343,279.53 and 135,576.25 is: 187,095.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,753.50 : 343,279.53 = 135,576.25 : x
  2. Step 2: Convert to fraction form
    248,753.50/343,279.53 = 135,576.25/x
  3. Step 3: Cross multiply
    248,753.50x = 343,279.53 × 135,576.25
  4. Step 4: Simplify right side
    248,753.50x = 46,540,551,379.16
  5. Step 5: Solve for x
    x = 46,540,551,379.16/248,753.50
  6. Step 6: Final answer
    x = 187,095.06

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1.5x scale

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.