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Finding the Fourth Proportional to 351,048.89, 484,446.01 and 189,903.54

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Solution

The fourth proportional to 351,048.89, 484,446.01 and 189,903.54 is: 262,066.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,048.89 : 484,446.01 = 189,903.54 : x
  2. Step 2: Convert to fraction form
    351,048.89/484,446.01 = 189,903.54/x
  3. Step 3: Cross multiply
    351,048.89x = 484,446.01 × 189,903.54
  4. Step 4: Simplify right side
    351,048.89x = 91,998,012,237.88
  5. Step 5: Solve for x
    x = 91,998,012,237.88/351,048.89
  6. Step 6: Final answer
    x = 262,066.10

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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.