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Finding the Fourth Proportional to 92,751.68, 127,996.62 and 51,915.84

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Solution

The fourth proportional to 92,751.68, 127,996.62 and 51,915.84 is: 71,643.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,751.68 : 127,996.62 = 51,915.84 : x
  2. Step 2: Convert to fraction form
    92,751.68/127,996.62 = 51,915.84/x
  3. Step 3: Cross multiply
    92,751.68x = 127,996.62 × 51,915.84
  4. Step 4: Simplify right side
    92,751.68x = 6,645,052,044.46
  5. Step 5: Solve for x
    x = 6,645,052,044.46/92,751.68
  6. Step 6: Final answer
    x = 71,643.47

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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.