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Finding the Fourth Proportional to 92,381.70, 127,487.08 and 49,940.23

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Solution

The fourth proportional to 92,381.70, 127,487.08 and 49,940.23 is: 68,917.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,381.70 : 127,487.08 = 49,940.23 : x
  2. Step 2: Convert to fraction form
    92,381.70/127,487.08 = 49,940.23/x
  3. Step 3: Cross multiply
    92,381.70x = 127,487.08 × 49,940.23
  4. Step 4: Simplify right side
    92,381.70x = 6,366,734,097.23
  5. Step 5: Solve for x
    x = 6,366,734,097.23/92,381.70
  6. Step 6: Final answer
    x = 68,917.70

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1.5x scale

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.