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Finding the Fourth Proportional to 72,330.76, 108,465.70 and 27,344.54

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Solution

The fourth proportional to 72,330.76, 108,465.70 and 27,344.54 is: 41,005.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,330.76 : 108,465.70 = 27,344.54 : x
  2. Step 2: Convert to fraction form
    72,330.76/108,465.70 = 27,344.54/x
  3. Step 3: Cross multiply
    72,330.76x = 108,465.70 × 27,344.54
  4. Step 4: Simplify right side
    72,330.76x = 2,965,944,316.23
  5. Step 5: Solve for x
    x = 2,965,944,316.23/72,330.76
  6. Step 6: Final answer
    x = 41,005.30

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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.