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Finding the Fourth Proportional to 96,661.54, 133,389.43 and 53,642.91

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Solution

The fourth proportional to 96,661.54, 133,389.43 and 53,642.91 is: 74,025.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,661.54 : 133,389.43 = 53,642.91 : x
  2. Step 2: Convert to fraction form
    96,661.54/133,389.43 = 53,642.91/x
  3. Step 3: Cross multiply
    96,661.54x = 133,389.43 × 53,642.91
  4. Step 4: Simplify right side
    96,661.54x = 7,155,397,105.97
  5. Step 5: Solve for x
    x = 7,155,397,105.97/96,661.54
  6. Step 6: Final answer
    x = 74,025.28

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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.