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Finding the Fourth Proportional to 72,773.18, 108,956.57 and 39,373.44

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Solution

The fourth proportional to 72,773.18, 108,956.57 and 39,373.44 is: 58,950.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,773.18 : 108,956.57 = 39,373.44 : x
  2. Step 2: Convert to fraction form
    72,773.18/108,956.57 = 39,373.44/x
  3. Step 3: Cross multiply
    72,773.18x = 108,956.57 × 39,373.44
  4. Step 4: Simplify right side
    72,773.18x = 4,289,994,774.63
  5. Step 5: Solve for x
    x = 4,289,994,774.63/72,773.18
  6. Step 6: Final answer
    x = 58,950.22

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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.