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Finding the Fourth Proportional to 192,790.86, 266,000.94 and 111,099.12

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Solution

The fourth proportional to 192,790.86, 266,000.94 and 111,099.12 is: 153,287.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,790.86 : 266,000.94 = 111,099.12 : x
  2. Step 2: Convert to fraction form
    192,790.86/266,000.94 = 111,099.12/x
  3. Step 3: Cross multiply
    192,790.86x = 266,000.94 × 111,099.12
  4. Step 4: Simplify right side
    192,790.86x = 29,552,470,353.17
  5. Step 5: Solve for x
    x = 29,552,470,353.17/192,790.86
  6. Step 6: Final answer
    x = 153,287.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.