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Finding the Fourth Proportional to 262,042.72, 361,506.90 and 171,241.08

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Solution

The fourth proportional to 262,042.72, 361,506.90 and 171,241.08 is: 236,239.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,042.72 : 361,506.90 = 171,241.08 : x
  2. Step 2: Convert to fraction form
    262,042.72/361,506.90 = 171,241.08/x
  3. Step 3: Cross multiply
    262,042.72x = 361,506.90 × 171,241.08
  4. Step 4: Simplify right side
    262,042.72x = 61,904,831,983.45
  5. Step 5: Solve for x
    x = 61,904,831,983.45/262,042.72
  6. Step 6: Final answer
    x = 236,239.47

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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.