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Finding the Fourth Proportional to 351,186.48, 484,639.58 and 205,962.64

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Solution

The fourth proportional to 351,186.48, 484,639.58 and 205,962.64 is: 284,229.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,186.48 : 484,639.58 = 205,962.64 : x
  2. Step 2: Convert to fraction form
    351,186.48/484,639.58 = 205,962.64/x
  3. Step 3: Cross multiply
    351,186.48x = 484,639.58 × 205,962.64
  4. Step 4: Simplify right side
    351,186.48x = 99,817,647,345.29
  5. Step 5: Solve for x
    x = 99,817,647,345.29/351,186.48
  6. Step 6: Final answer
    x = 284,229.76

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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.