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Finding the Fourth Proportional to 92,395.38, 127,505.43 and 49,953.81

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Solution

The fourth proportional to 92,395.38, 127,505.43 and 49,953.81 is: 68,936.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,395.38 : 127,505.43 = 49,953.81 : x
  2. Step 2: Convert to fraction form
    92,395.38/127,505.43 = 49,953.81/x
  3. Step 3: Cross multiply
    92,395.38x = 127,505.43 × 49,953.81
  4. Step 4: Simplify right side
    92,395.38x = 6,369,382,024.19
  5. Step 5: Solve for x
    x = 6,369,382,024.19/92,395.38
  6. Step 6: Final answer
    x = 68,936.15

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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.