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Finding the Fourth Proportional to 92,357.45, 127,453.31 and 49,915.98

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Solution

The fourth proportional to 92,357.45, 127,453.31 and 49,915.98 is: 68,884.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,357.45 : 127,453.31 = 49,915.98 : x
  2. Step 2: Convert to fraction form
    92,357.45/127,453.31 = 49,915.98/x
  3. Step 3: Cross multiply
    92,357.45x = 127,453.31 × 49,915.98
  4. Step 4: Simplify right side
    92,357.45x = 6,361,956,872.89
  5. Step 5: Solve for x
    x = 6,361,956,872.89/92,357.45
  6. Step 6: Final answer
    x = 68,884.07

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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.