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Finding the Fourth Proportional to 69,614.93, 96,068.54 and 39,399.71

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Solution

The fourth proportional to 69,614.93, 96,068.54 and 39,399.71 is: 54,371.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,614.93 : 96,068.54 = 39,399.71 : x
  2. Step 2: Convert to fraction form
    69,614.93/96,068.54 = 39,399.71/x
  3. Step 3: Cross multiply
    69,614.93x = 96,068.54 × 39,399.71
  4. Step 4: Simplify right side
    69,614.93x = 3,785,071,938.78
  5. Step 5: Solve for x
    x = 3,785,071,938.78/69,614.93
  6. Step 6: Final answer
    x = 54,371.56

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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.