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Finding the Fourth Proportional to 323,079.79, 484,918.90 and 163,268.18

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Solution

The fourth proportional to 323,079.79, 484,918.90 and 163,268.18 is: 245,053.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,079.79 : 484,918.90 = 163,268.18 : x
  2. Step 2: Convert to fraction form
    323,079.79/484,918.90 = 163,268.18/x
  3. Step 3: Cross multiply
    323,079.79x = 484,918.90 × 163,268.18
  4. Step 4: Simplify right side
    323,079.79x = 79,171,824,951.01
  5. Step 5: Solve for x
    x = 79,171,824,951.01/323,079.79
  6. Step 6: Final answer
    x = 245,053.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.