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Finding the Fourth Proportional to 92,017.53, 126,988.70 and 51,743.97

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Solution

The fourth proportional to 92,017.53, 126,988.70 and 51,743.97 is: 71,409.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,017.53 : 126,988.70 = 51,743.97 : x
  2. Step 2: Convert to fraction form
    92,017.53/126,988.70 = 51,743.97/x
  3. Step 3: Cross multiply
    92,017.53x = 126,988.70 × 51,743.97
  4. Step 4: Simplify right side
    92,017.53x = 6,570,899,224.42
  5. Step 5: Solve for x
    x = 6,570,899,224.42/92,017.53
  6. Step 6: Final answer
    x = 71,409.21

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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.