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Finding the Fourth Proportional to 252,023.24, 377,991.12 and 85,811.24

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Solution

The fourth proportional to 252,023.24, 377,991.12 and 85,811.24 is: 128,701.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,023.24 : 377,991.12 = 85,811.24 : x
  2. Step 2: Convert to fraction form
    252,023.24/377,991.12 = 85,811.24/x
  3. Step 3: Cross multiply
    252,023.24x = 377,991.12 × 85,811.24
  4. Step 4: Simplify right side
    252,023.24x = 32,435,886,716.19
  5. Step 5: Solve for x
    x = 32,435,886,716.19/252,023.24
  6. Step 6: Final answer
    x = 128,701.97

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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.