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Finding the Fourth Proportional to 72,270.56, 108,326.76 and 37,212.32

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Solution

The fourth proportional to 72,270.56, 108,326.76 and 37,212.32 is: 55,777.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,270.56 : 108,326.76 = 37,212.32 : x
  2. Step 2: Convert to fraction form
    72,270.56/108,326.76 = 37,212.32/x
  3. Step 3: Cross multiply
    72,270.56x = 108,326.76 × 37,212.32
  4. Step 4: Simplify right side
    72,270.56x = 4,031,090,057.68
  5. Step 5: Solve for x
    x = 4,031,090,057.68/72,270.56
  6. Step 6: Final answer
    x = 55,777.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.