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Finding the Fourth Proportional to 92,932.46, 128,246.46 and 50,490.62

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Solution

The fourth proportional to 92,932.46, 128,246.46 and 50,490.62 is: 69,676.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,932.46 : 128,246.46 = 50,490.62 : x
  2. Step 2: Convert to fraction form
    92,932.46/128,246.46 = 50,490.62/x
  3. Step 3: Cross multiply
    92,932.46x = 128,246.46 × 50,490.62
  4. Step 4: Simplify right side
    92,932.46x = 6,475,243,278.21
  5. Step 5: Solve for x
    x = 6,475,243,278.21/92,932.46
  6. Step 6: Final answer
    x = 69,676.87

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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.