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Finding the Fourth Proportional to 92,402.49, 127,515.20 and 49,961.01

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Solution

The fourth proportional to 92,402.49, 127,515.20 and 49,961.01 is: 68,946.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,402.49 : 127,515.20 = 49,961.01 : x
  2. Step 2: Convert to fraction form
    92,402.49/127,515.20 = 49,961.01/x
  3. Step 3: Cross multiply
    92,402.49x = 127,515.20 × 49,961.01
  4. Step 4: Simplify right side
    92,402.49x = 6,370,787,932.55
  5. Step 5: Solve for x
    x = 6,370,787,932.55/92,402.49
  6. Step 6: Final answer
    x = 68,946.06

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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.