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Finding the Fourth Proportional to 315,361.38, 473,042.04 and 115,606.26

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Solution

The fourth proportional to 315,361.38, 473,042.04 and 115,606.26 is: 173,409.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,361.38 : 473,042.04 = 115,606.26 : x
  2. Step 2: Convert to fraction form
    315,361.38/473,042.04 = 115,606.26/x
  3. Step 3: Cross multiply
    315,361.38x = 473,042.04 × 115,606.26
  4. Step 4: Simplify right side
    315,361.38x = 54,686,621,067.17
  5. Step 5: Solve for x
    x = 54,686,621,067.17/315,361.38
  6. Step 6: Final answer
    x = 173,409.38

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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.