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Finding the Fourth Proportional to 161,672.76, 242,536.32 and 72,924.12

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Solution

The fourth proportional to 161,672.76, 242,536.32 and 72,924.12 is: 109,398.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,672.76 : 242,536.32 = 72,924.12 : x
  2. Step 2: Convert to fraction form
    161,672.76/242,536.32 = 72,924.12/x
  3. Step 3: Cross multiply
    161,672.76x = 242,536.32 × 72,924.12
  4. Step 4: Simplify right side
    161,672.76x = 17,686,747,704.04
  5. Step 5: Solve for x
    x = 17,686,747,704.04/161,672.76
  6. Step 6: Final answer
    x = 109,398.44

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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.