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Finding the Fourth Proportional to 108,361.86, 162,484.35 and 49,165.23

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Solution

The fourth proportional to 108,361.86, 162,484.35 and 49,165.23 is: 73,721.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,361.86 : 162,484.35 = 49,165.23 : x
  2. Step 2: Convert to fraction form
    108,361.86/162,484.35 = 49,165.23/x
  3. Step 3: Cross multiply
    108,361.86x = 162,484.35 × 49,165.23
  4. Step 4: Simplify right side
    108,361.86x = 7,988,580,439.15
  5. Step 5: Solve for x
    x = 7,988,580,439.15/108,361.86
  6. Step 6: Final answer
    x = 73,721.33

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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.