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Finding the Fourth Proportional to 72,693.19, 109,039.85 and 22,773.70

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Solution

The fourth proportional to 72,693.19, 109,039.85 and 22,773.70 is: 34,160.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,693.19 : 109,039.85 = 22,773.70 : x
  2. Step 2: Convert to fraction form
    72,693.19/109,039.85 = 22,773.70/x
  3. Step 3: Cross multiply
    72,693.19x = 109,039.85 × 22,773.70
  4. Step 4: Simplify right side
    72,693.19x = 2,483,240,172.88
  5. Step 5: Solve for x
    x = 2,483,240,172.88/72,693.19
  6. Step 6: Final answer
    x = 34,160.56

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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.