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Finding the Fourth Proportional to 214,492.56, 321,636.54 and 79,463.97

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Solution

The fourth proportional to 214,492.56, 321,636.54 and 79,463.97 is: 119,158.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,492.56 : 321,636.54 = 79,463.97 : x
  2. Step 2: Convert to fraction form
    214,492.56/321,636.54 = 79,463.97/x
  3. Step 3: Cross multiply
    214,492.56x = 321,636.54 × 79,463.97
  4. Step 4: Simplify right side
    214,492.56x = 25,558,516,365.46
  5. Step 5: Solve for x
    x = 25,558,516,365.46/214,492.56
  6. Step 6: Final answer
    x = 119,158.06

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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.