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Finding the Fourth Proportional to 117,755.88, 162,446.01 and 69,975.42

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Solution

The fourth proportional to 117,755.88, 162,446.01 and 69,975.42 is: 96,532.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,755.88 : 162,446.01 = 69,975.42 : x
  2. Step 2: Convert to fraction form
    117,755.88/162,446.01 = 69,975.42/x
  3. Step 3: Cross multiply
    117,755.88x = 162,446.01 × 69,975.42
  4. Step 4: Simplify right side
    117,755.88x = 11,367,227,777.07
  5. Step 5: Solve for x
    x = 11,367,227,777.07/117,755.88
  6. Step 6: Final answer
    x = 96,532.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.