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Finding the Fourth Proportional to 92,379.96, 127,484.36 and 49,938.50

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Solution

The fourth proportional to 92,379.96, 127,484.36 and 49,938.50 is: 68,915.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,379.96 : 127,484.36 = 49,938.50 : x
  2. Step 2: Convert to fraction form
    92,379.96/127,484.36 = 49,938.50/x
  3. Step 3: Cross multiply
    92,379.96x = 127,484.36 × 49,938.50
  4. Step 4: Simplify right side
    92,379.96x = 6,366,377,711.86
  5. Step 5: Solve for x
    x = 6,366,377,711.86/92,379.96
  6. Step 6: Final answer
    x = 68,915.14

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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.