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Finding the Fourth Proportional to 117,591.85, 162,214.53 and 74,495.29

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Solution

The fourth proportional to 117,591.85, 162,214.53 and 74,495.29 is: 102,764.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,591.85 : 162,214.53 = 74,495.29 : x
  2. Step 2: Convert to fraction form
    117,591.85/162,214.53 = 74,495.29/x
  3. Step 3: Cross multiply
    117,591.85x = 162,214.53 × 74,495.29
  4. Step 4: Simplify right side
    117,591.85x = 12,084,218,454.56
  5. Step 5: Solve for x
    x = 12,084,218,454.56/117,591.85
  6. Step 6: Final answer
    x = 102,764.08

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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.