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Finding the Fourth Proportional to 117,271.87, 161,835.10 and 63,556.88

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Solution

The fourth proportional to 117,271.87, 161,835.10 and 63,556.88 is: 87,708.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,271.87 : 161,835.10 = 63,556.88 : x
  2. Step 2: Convert to fraction form
    117,271.87/161,835.10 = 63,556.88/x
  3. Step 3: Cross multiply
    117,271.87x = 161,835.10 × 63,556.88
  4. Step 4: Simplify right side
    117,271.87x = 10,285,733,062.42
  5. Step 5: Solve for x
    x = 10,285,733,062.42/117,271.87
  6. Step 6: Final answer
    x = 87,708.44

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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.