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Finding the Fourth Proportional to 351,732.78, 485,558.61 and 235,646.16

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Solution

The fourth proportional to 351,732.78, 485,558.61 and 235,646.16 is: 325,303.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,732.78 : 485,558.61 = 235,646.16 : x
  2. Step 2: Convert to fraction form
    351,732.78/485,558.61 = 235,646.16/x
  3. Step 3: Cross multiply
    351,732.78x = 485,558.61 × 235,646.16
  4. Step 4: Simplify right side
    351,732.78x = 114,420,021,901.44
  5. Step 5: Solve for x
    x = 114,420,021,901.44/351,732.78
  6. Step 6: Final answer
    x = 325,303.83

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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.