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Finding the Fourth Proportional to 265,093.85, 397,714.89 and 87,725.72

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Solution

The fourth proportional to 265,093.85, 397,714.89 and 87,725.72 is: 131,613.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,093.85 : 397,714.89 = 87,725.72 : x
  2. Step 2: Convert to fraction form
    265,093.85/397,714.89 = 87,725.72/x
  3. Step 3: Cross multiply
    265,093.85x = 397,714.89 × 87,725.72
  4. Step 4: Simplify right side
    265,093.85x = 34,889,823,091.40
  5. Step 5: Solve for x
    x = 34,889,823,091.40/265,093.85
  6. Step 6: Final answer
    x = 131,613.10

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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.