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Finding the Fourth Proportional to 121,173.44, 181,780.80 and 41,203.04

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Solution

The fourth proportional to 121,173.44, 181,780.80 and 41,203.04 is: 61,811.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,173.44 : 181,780.80 = 41,203.04 : x
  2. Step 2: Convert to fraction form
    121,173.44/181,780.80 = 41,203.04/x
  3. Step 3: Cross multiply
    121,173.44x = 181,780.80 × 41,203.04
  4. Step 4: Simplify right side
    121,173.44x = 7,489,921,573.63
  5. Step 5: Solve for x
    x = 7,489,921,573.63/121,173.44
  6. Step 6: Final answer
    x = 61,811.58

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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.