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Finding the Fourth Proportional to 92,343.72, 127,539.42 and 62,076.56

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Solution

The fourth proportional to 92,343.72, 127,539.42 and 62,076.56 is: 85,736.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,343.72 : 127,539.42 = 62,076.56 : x
  2. Step 2: Convert to fraction form
    92,343.72/127,539.42 = 62,076.56/x
  3. Step 3: Cross multiply
    92,343.72x = 127,539.42 × 62,076.56
  4. Step 4: Simplify right side
    92,343.72x = 7,917,208,458.00
  5. Step 5: Solve for x
    x = 7,917,208,458.00/92,343.72
  6. Step 6: Final answer
    x = 85,736.30

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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.