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Finding the Fourth Proportional to 171,679.10, 257,514.60 and 47,020.10

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Solution

The fourth proportional to 171,679.10, 257,514.60 and 47,020.10 is: 70,529.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,679.10 : 257,514.60 = 47,020.10 : x
  2. Step 2: Convert to fraction form
    171,679.10/257,514.60 = 47,020.10/x
  3. Step 3: Cross multiply
    171,679.10x = 257,514.60 × 47,020.10
  4. Step 4: Simplify right side
    171,679.10x = 12,108,362,243.46
  5. Step 5: Solve for x
    x = 12,108,362,243.46/171,679.10
  6. Step 6: Final answer
    x = 70,529.04

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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.