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Finding the Fourth Proportional to 72,350.81, 108,592.82 and 36,837.51

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Solution

The fourth proportional to 72,350.81, 108,592.82 and 36,837.51 is: 55,290.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,350.81 : 108,592.82 = 36,837.51 : x
  2. Step 2: Convert to fraction form
    72,350.81/108,592.82 = 36,837.51/x
  3. Step 3: Cross multiply
    72,350.81x = 108,592.82 × 36,837.51
  4. Step 4: Simplify right side
    72,350.81x = 4,000,289,092.68
  5. Step 5: Solve for x
    x = 4,000,289,092.68/72,350.81
  6. Step 6: Final answer
    x = 55,290.18

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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.