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Finding the Fourth Proportional to 181,678.78, 274,224.67 and 181,678.78

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Solution

The fourth proportional to 181,678.78, 274,224.67 and 181,678.78 is: 274,224.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,678.78 : 274,224.67 = 181,678.78 : x
  2. Step 2: Convert to fraction form
    181,678.78/274,224.67 = 181,678.78/x
  3. Step 3: Cross multiply
    181,678.78x = 274,224.67 × 181,678.78
  4. Step 4: Simplify right side
    181,678.78x = 49,820,803,491.50
  5. Step 5: Solve for x
    x = 49,820,803,491.50/181,678.78
  6. Step 6: Final answer
    x = 274,224.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.