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Finding the Fourth Proportional to 173,676.10, 260,514.15 and 85,102.60

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Solution

The fourth proportional to 173,676.10, 260,514.15 and 85,102.60 is: 127,653.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,676.10 : 260,514.15 = 85,102.60 : x
  2. Step 2: Convert to fraction form
    173,676.10/260,514.15 = 85,102.60/x
  3. Step 3: Cross multiply
    173,676.10x = 260,514.15 × 85,102.60
  4. Step 4: Simplify right side
    173,676.10x = 22,170,431,501.79
  5. Step 5: Solve for x
    x = 22,170,431,501.79/173,676.10
  6. Step 6: Final answer
    x = 127,653.90

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1.5x scale

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.