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Finding the Fourth Proportional to 96,669.36, 133,404.78 and 53,649.48

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Solution

The fourth proportional to 96,669.36, 133,404.78 and 53,649.48 is: 74,036.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,669.36 : 133,404.78 = 53,649.48 : x
  2. Step 2: Convert to fraction form
    96,669.36/133,404.78 = 53,649.48/x
  3. Step 3: Cross multiply
    96,669.36x = 133,404.78 × 53,649.48
  4. Step 4: Simplify right side
    96,669.36x = 7,157,097,076.51
  5. Step 5: Solve for x
    x = 7,157,097,076.51/96,669.36
  6. Step 6: Final answer
    x = 74,036.87

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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.