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Finding the Fourth Proportional to 117,808.80, 162,572.42 and 64,092.44

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Solution

The fourth proportional to 117,808.80, 162,572.42 and 64,092.44 is: 88,445.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,808.80 : 162,572.42 = 64,092.44 : x
  2. Step 2: Convert to fraction form
    117,808.80/162,572.42 = 64,092.44/x
  3. Step 3: Cross multiply
    117,808.80x = 162,572.42 × 64,092.44
  4. Step 4: Simplify right side
    117,808.80x = 10,419,663,074.50
  5. Step 5: Solve for x
    x = 10,419,663,074.50/117,808.80
  6. Step 6: Final answer
    x = 88,445.54

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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.