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Finding the Fourth Proportional to 351,313.16, 484,811.75 and 190,168.16

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Solution

The fourth proportional to 351,313.16, 484,811.75 and 190,168.16 is: 262,431.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,313.16 : 484,811.75 = 190,168.16 : x
  2. Step 2: Convert to fraction form
    351,313.16/484,811.75 = 190,168.16/x
  3. Step 3: Cross multiply
    351,313.16x = 484,811.75 × 190,168.16
  4. Step 4: Simplify right side
    351,313.16x = 92,195,756,495.24
  5. Step 5: Solve for x
    x = 92,195,756,495.24/351,313.16
  6. Step 6: Final answer
    x = 262,431.84

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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.