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Finding the Fourth Proportional to 169,189.78, 253,784.86 and 50,861.12

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Solution

The fourth proportional to 169,189.78, 253,784.86 and 50,861.12 is: 76,291.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,189.78 : 253,784.86 = 50,861.12 : x
  2. Step 2: Convert to fraction form
    169,189.78/253,784.86 = 50,861.12/x
  3. Step 3: Cross multiply
    169,189.78x = 253,784.86 × 50,861.12
  4. Step 4: Simplify right side
    169,189.78x = 12,907,782,218.64
  5. Step 5: Solve for x
    x = 12,907,782,218.64/169,189.78
  6. Step 6: Final answer
    x = 76,291.74

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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.