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Finding the Fourth Proportional to 322,804.10, 484,261.29 and 133,160.79

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Solution

The fourth proportional to 322,804.10, 484,261.29 and 133,160.79 is: 199,763.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,804.10 : 484,261.29 = 133,160.79 : x
  2. Step 2: Convert to fraction form
    322,804.10/484,261.29 = 133,160.79/x
  3. Step 3: Cross multiply
    322,804.10x = 484,261.29 × 133,160.79
  4. Step 4: Simplify right side
    322,804.10x = 64,484,615,942.82
  5. Step 5: Solve for x
    x = 64,484,615,942.82/322,804.10
  6. Step 6: Final answer
    x = 199,763.93

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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.