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Finding the Fourth Proportional to 92,689.52, 127,914.53 and 51,296.96

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Solution

The fourth proportional to 92,689.52, 127,914.53 and 51,296.96 is: 70,791.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,689.52 : 127,914.53 = 51,296.96 : x
  2. Step 2: Convert to fraction form
    92,689.52/127,914.53 = 51,296.96/x
  3. Step 3: Cross multiply
    92,689.52x = 127,914.53 × 51,296.96
  4. Step 4: Simplify right side
    92,689.52x = 6,561,626,592.13
  5. Step 5: Solve for x
    x = 6,561,626,592.13/92,689.52
  6. Step 6: Final answer
    x = 70,791.47

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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.