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Finding the Fourth Proportional to 117,576.01, 162,255.35 and 63,861.92

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Solution

The fourth proportional to 117,576.01, 162,255.35 and 63,861.92 is: 88,129.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,576.01 : 162,255.35 = 63,861.92 : x
  2. Step 2: Convert to fraction form
    117,576.01/162,255.35 = 63,861.92/x
  3. Step 3: Cross multiply
    117,576.01x = 162,255.35 × 63,861.92
  4. Step 4: Simplify right side
    117,576.01x = 10,361,938,138.11
  5. Step 5: Solve for x
    x = 10,361,938,138.11/117,576.01
  6. Step 6: Final answer
    x = 88,129.70

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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.