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Finding the Fourth Proportional to 128,176.53, 192,209.46 and 43,944.93

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Solution

The fourth proportional to 128,176.53, 192,209.46 and 43,944.93 is: 65,898.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,176.53 : 192,209.46 = 43,944.93 : x
  2. Step 2: Convert to fraction form
    128,176.53/192,209.46 = 43,944.93/x
  3. Step 3: Cross multiply
    128,176.53x = 192,209.46 × 43,944.93
  4. Step 4: Simplify right side
    128,176.53x = 8,446,631,100.24
  5. Step 5: Solve for x
    x = 8,446,631,100.24/128,176.53
  6. Step 6: Final answer
    x = 65,898.42

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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.