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Finding the Fourth Proportional to 128,024.38, 192,059.31 and 43,793.86

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Solution

The fourth proportional to 128,024.38, 192,059.31 and 43,793.86 is: 65,698.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,024.38 : 192,059.31 = 43,793.86 : x
  2. Step 2: Convert to fraction form
    128,024.38/192,059.31 = 43,793.86/x
  3. Step 3: Cross multiply
    128,024.38x = 192,059.31 × 43,793.86
  4. Step 4: Simplify right side
    128,024.38x = 8,411,018,533.84
  5. Step 5: Solve for x
    x = 8,411,018,533.84/128,024.38
  6. Step 6: Final answer
    x = 65,698.57

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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.