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Finding the Fourth Proportional to 92,423.73, 127,323.60 and 87,921.25

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Solution

The fourth proportional to 92,423.73, 127,323.60 and 87,921.25 is: 121,120.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,423.73 : 127,323.60 = 87,921.25 : x
  2. Step 2: Convert to fraction form
    92,423.73/127,323.60 = 87,921.25/x
  3. Step 3: Cross multiply
    92,423.73x = 127,323.60 × 87,921.25
  4. Step 4: Simplify right side
    92,423.73x = 11,194,449,418.49
  5. Step 5: Solve for x
    x = 11,194,449,418.49/92,423.73
  6. Step 6: Final answer
    x = 121,120.94

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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.