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Finding the Fourth Proportional to 235,263.44, 324,627 and 139,767.68

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Solution

The fourth proportional to 235,263.44, 324,627 and 139,767.68 is: 192,857.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,263.44 : 324,627 = 139,767.68 : x
  2. Step 2: Convert to fraction form
    235,263.44/324,627 = 139,767.68/x
  3. Step 3: Cross multiply
    235,263.44x = 324,627 × 139,767.68
  4. Step 4: Simplify right side
    235,263.44x = 45,372,362,655.36
  5. Step 5: Solve for x
    x = 45,372,362,655.36/235,263.44
  6. Step 6: Final answer
    x = 192,857.69

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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.