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Finding the Fourth Proportional to 128,600.00, 192,900.02 and 53,679.27

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Solution

The fourth proportional to 128,600.00, 192,900.02 and 53,679.27 is: 80,518.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,600.00 : 192,900.02 = 53,679.27 : x
  2. Step 2: Convert to fraction form
    128,600.00/192,900.02 = 53,679.27/x
  3. Step 3: Cross multiply
    128,600.00x = 192,900.02 × 53,679.27
  4. Step 4: Simplify right side
    128,600.00x = 10,354,733,124.67
  5. Step 5: Solve for x
    x = 10,354,733,124.67/128,600.00
  6. Step 6: Final answer
    x = 80,518.92

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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.