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Finding the Fourth Proportional to 117,863.76, 162,652.44 and 64,149.42

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Solution

The fourth proportional to 117,863.76, 162,652.44 and 64,149.42 is: 88,526.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,863.76 : 162,652.44 = 64,149.42 : x
  2. Step 2: Convert to fraction form
    117,863.76/162,652.44 = 64,149.42/x
  3. Step 3: Cross multiply
    117,863.76x = 162,652.44 × 64,149.42
  4. Step 4: Simplify right side
    117,863.76x = 10,434,059,687.58
  5. Step 5: Solve for x
    x = 10,434,059,687.58/117,863.76
  6. Step 6: Final answer
    x = 88,526.45

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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.