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Finding the Fourth Proportional to 192,127.89, 265,135.47 and 111,575.22

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Solution

The fourth proportional to 192,127.89, 265,135.47 and 111,575.22 is: 153,973.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,127.89 : 265,135.47 = 111,575.22 : x
  2. Step 2: Convert to fraction form
    192,127.89/265,135.47 = 111,575.22/x
  3. Step 3: Cross multiply
    192,127.89x = 265,135.47 × 111,575.22
  4. Step 4: Simplify right side
    192,127.89x = 29,582,548,395.05
  5. Step 5: Solve for x
    x = 29,582,548,395.05/192,127.89
  6. Step 6: Final answer
    x = 153,973.21

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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.