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Finding the Fourth Proportional to 92,620.64, 127,816.44 and 50,178.80

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Solution

The fourth proportional to 92,620.64, 127,816.44 and 50,178.80 is: 69,246.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,620.64 : 127,816.44 = 50,178.80 : x
  2. Step 2: Convert to fraction form
    92,620.64/127,816.44 = 50,178.80/x
  3. Step 3: Cross multiply
    92,620.64x = 127,816.44 × 50,178.80
  4. Step 4: Simplify right side
    92,620.64x = 6,413,675,579.47
  5. Step 5: Solve for x
    x = 6,413,675,579.47/92,620.64
  6. Step 6: Final answer
    x = 69,246.72

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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.