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Finding the Fourth Proportional to 133,265.01, 183,906.03 and 72,836.37

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Solution

The fourth proportional to 133,265.01, 183,906.03 and 72,836.37 is: 100,514.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,265.01 : 183,906.03 = 72,836.37 : x
  2. Step 2: Convert to fraction form
    133,265.01/183,906.03 = 72,836.37/x
  3. Step 3: Cross multiply
    133,265.01x = 183,906.03 × 72,836.37
  4. Step 4: Simplify right side
    133,265.01x = 13,395,047,646.31
  5. Step 5: Solve for x
    x = 13,395,047,646.31/133,265.01
  6. Step 6: Final answer
    x = 100,514.36

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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.