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Finding the Fourth Proportional to 171,705.44, 236,905.20 and 135,293.96

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Solution

The fourth proportional to 171,705.44, 236,905.20 and 135,293.96 is: 186,667.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,705.44 : 236,905.20 = 135,293.96 : x
  2. Step 2: Convert to fraction form
    171,705.44/236,905.20 = 135,293.96/x
  3. Step 3: Cross multiply
    171,705.44x = 236,905.20 × 135,293.96
  4. Step 4: Simplify right side
    171,705.44x = 32,051,842,652.59
  5. Step 5: Solve for x
    x = 32,051,842,652.59/171,705.44
  6. Step 6: Final answer
    x = 186,667.60

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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.