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Finding the Fourth Proportional to 49,166.78, 73,750.19 and 12,230.78

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Solution

The fourth proportional to 49,166.78, 73,750.19 and 12,230.78 is: 18,346.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,166.78 : 73,750.19 = 12,230.78 : x
  2. Step 2: Convert to fraction form
    49,166.78/73,750.19 = 12,230.78/x
  3. Step 3: Cross multiply
    49,166.78x = 73,750.19 × 12,230.78
  4. Step 4: Simplify right side
    49,166.78x = 902,021,918.94
  5. Step 5: Solve for x
    x = 902,021,918.94/49,166.78
  6. Step 6: Final answer
    x = 18,346.17

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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.