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Finding the Fourth Proportional to 92,708.75, 127,993.26 and 60,932.55

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Solution

The fourth proportional to 92,708.75, 127,993.26 and 60,932.55 is: 84,123.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,708.75 : 127,993.26 = 60,932.55 : x
  2. Step 2: Convert to fraction form
    92,708.75/127,993.26 = 60,932.55/x
  3. Step 3: Cross multiply
    92,708.75x = 127,993.26 × 60,932.55
  4. Step 4: Simplify right side
    92,708.75x = 7,798,956,423.08
  5. Step 5: Solve for x
    x = 7,798,956,423.08/92,708.75
  6. Step 6: Final answer
    x = 84,123.19

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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.