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Finding the Fourth Proportional to 72,477, 108,774.36 and 37,426.68

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Solution

The fourth proportional to 72,477, 108,774.36 and 37,426.68 is: 56,170.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,477 : 108,774.36 = 37,426.68 : x
  2. Step 2: Convert to fraction form
    72,477/108,774.36 = 37,426.68/x
  3. Step 3: Cross multiply
    72,477x = 108,774.36 × 37,426.68
  4. Step 4: Simplify right side
    72,477x = 4,071,063,163.92
  5. Step 5: Solve for x
    x = 4,071,063,163.92/72,477
  6. Step 6: Final answer
    x = 56,170.41

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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.