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Finding the Fourth Proportional to 92,123.96, 127,133.53 and 51,839.15

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Solution

The fourth proportional to 92,123.96, 127,133.53 and 51,839.15 is: 71,539.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,123.96 : 127,133.53 = 51,839.15 : x
  2. Step 2: Convert to fraction form
    92,123.96/127,133.53 = 51,839.15/x
  3. Step 3: Cross multiply
    92,123.96x = 127,133.53 × 51,839.15
  4. Step 4: Simplify right side
    92,123.96x = 6,590,493,366.43
  5. Step 5: Solve for x
    x = 6,590,493,366.43/92,123.96
  6. Step 6: Final answer
    x = 71,539.41

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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.