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Finding the Fourth Proportional to 92,362.80, 127,460.72 and 49,921.37

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Solution

The fourth proportional to 92,362.80, 127,460.72 and 49,921.37 is: 68,891.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,362.80 : 127,460.72 = 49,921.37 : x
  2. Step 2: Convert to fraction form
    92,362.80/127,460.72 = 49,921.37/x
  3. Step 3: Cross multiply
    92,362.80x = 127,460.72 × 49,921.37
  4. Step 4: Simplify right side
    92,362.80x = 6,363,013,763.59
  5. Step 5: Solve for x
    x = 6,363,013,763.59/92,362.80
  6. Step 6: Final answer
    x = 68,891.52

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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.