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Finding the Fourth Proportional to 351,137.64, 484,569.63 and 198,208.02

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Solution

The fourth proportional to 351,137.64, 484,569.63 and 198,208.02 is: 273,526.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,137.64 : 484,569.63 = 198,208.02 : x
  2. Step 2: Convert to fraction form
    351,137.64/484,569.63 = 198,208.02/x
  3. Step 3: Cross multiply
    351,137.64x = 484,569.63 × 198,208.02
  4. Step 4: Simplify right side
    351,137.64x = 96,045,586,914.43
  5. Step 5: Solve for x
    x = 96,045,586,914.43/351,137.64
  6. Step 6: Final answer
    x = 273,526.89

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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.