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Finding the Fourth Proportional to 73,134.48, 109,700.76 and 17,730.96

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Solution

The fourth proportional to 73,134.48, 109,700.76 and 17,730.96 is: 26,596.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,134.48 : 109,700.76 = 17,730.96 : x
  2. Step 2: Convert to fraction form
    73,134.48/109,700.76 = 17,730.96/x
  3. Step 3: Cross multiply
    73,134.48x = 109,700.76 × 17,730.96
  4. Step 4: Simplify right side
    73,134.48x = 1,945,099,787.53
  5. Step 5: Solve for x
    x = 1,945,099,787.53/73,134.48
  6. Step 6: Final answer
    x = 26,596.21

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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.