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Finding the Fourth Proportional to 72,592.29, 100,174.77 and 40,762.53

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Solution

The fourth proportional to 72,592.29, 100,174.77 and 40,762.53 is: 56,250.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,592.29 : 100,174.77 = 40,762.53 : x
  2. Step 2: Convert to fraction form
    72,592.29/100,174.77 = 40,762.53/x
  3. Step 3: Cross multiply
    72,592.29x = 100,174.77 × 40,762.53
  4. Step 4: Simplify right side
    72,592.29x = 4,083,377,067.37
  5. Step 5: Solve for x
    x = 4,083,377,067.37/72,592.29
  6. Step 6: Final answer
    x = 56,250.84

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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.