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Finding the Fourth Proportional to 168,016.60, 252,024.90 and 120,777.40

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Solution

The fourth proportional to 168,016.60, 252,024.90 and 120,777.40 is: 181,166.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,016.60 : 252,024.90 = 120,777.40 : x
  2. Step 2: Convert to fraction form
    168,016.60/252,024.90 = 120,777.40/x
  3. Step 3: Cross multiply
    168,016.60x = 252,024.90 × 120,777.40
  4. Step 4: Simplify right side
    168,016.60x = 30,438,912,157.26
  5. Step 5: Solve for x
    x = 30,438,912,157.26/168,016.60
  6. Step 6: Final answer
    x = 181,166.10

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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.