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Finding the Fourth Proportional to 171,321.60, 236,257.92 and 133,582.08

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Solution

The fourth proportional to 171,321.60, 236,257.92 and 133,582.08 is: 184,213.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,321.60 : 236,257.92 = 133,582.08 : x
  2. Step 2: Convert to fraction form
    171,321.60/236,257.92 = 133,582.08/x
  3. Step 3: Cross multiply
    171,321.60x = 236,257.92 × 133,582.08
  4. Step 4: Simplify right side
    171,321.60x = 31,559,824,370.07
  5. Step 5: Solve for x
    x = 31,559,824,370.07/171,321.60
  6. Step 6: Final answer
    x = 184,213.92

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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.