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Finding the Fourth Proportional to 219,881.36, 303,441.72 and 134,950.16

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Solution

The fourth proportional to 219,881.36, 303,441.72 and 134,950.16 is: 186,234.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,881.36 : 303,441.72 = 134,950.16 : x
  2. Step 2: Convert to fraction form
    219,881.36/303,441.72 = 134,950.16/x
  3. Step 3: Cross multiply
    219,881.36x = 303,441.72 × 134,950.16
  4. Step 4: Simplify right side
    219,881.36x = 40,949,508,664.68
  5. Step 5: Solve for x
    x = 40,949,508,664.68/219,881.36
  6. Step 6: Final answer
    x = 186,234.56

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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.