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Finding the Fourth Proportional to 73,485.23, 101,419.90 and 53,133.37

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Solution

The fourth proportional to 73,485.23, 101,419.90 and 53,133.37 is: 73,331.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,485.23 : 101,419.90 = 53,133.37 : x
  2. Step 2: Convert to fraction form
    73,485.23/101,419.90 = 53,133.37/x
  3. Step 3: Cross multiply
    73,485.23x = 101,419.90 × 53,133.37
  4. Step 4: Simplify right side
    73,485.23x = 5,388,781,072.06
  5. Step 5: Solve for x
    x = 5,388,781,072.06/73,485.23
  6. Step 6: Final answer
    x = 73,331.49

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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.