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Finding the Fourth Proportional to 92,125.49, 127,133.69 and 51,839.91

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Solution

The fourth proportional to 92,125.49, 127,133.69 and 51,839.91 is: 71,539.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,125.49 : 127,133.69 = 51,839.91 : x
  2. Step 2: Convert to fraction form
    92,125.49/127,133.69 = 51,839.91/x
  3. Step 3: Cross multiply
    92,125.49x = 127,133.69 × 51,839.91
  4. Step 4: Simplify right side
    92,125.49x = 6,590,598,788.37
  5. Step 5: Solve for x
    x = 6,590,598,788.37/92,125.49
  6. Step 6: Final answer
    x = 71,539.37

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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.