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Finding the Fourth Proportional to 132,556.50, 182,927.97 and 72,940.50

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Solution

The fourth proportional to 132,556.50, 182,927.97 and 72,940.50 is: 100,657.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,556.50 : 182,927.97 = 72,940.50 : x
  2. Step 2: Convert to fraction form
    132,556.50/182,927.97 = 72,940.50/x
  3. Step 3: Cross multiply
    132,556.50x = 182,927.97 × 72,940.50
  4. Step 4: Simplify right side
    132,556.50x = 13,342,857,595.79
  5. Step 5: Solve for x
    x = 13,342,857,595.79/132,556.50
  6. Step 6: Final answer
    x = 100,657.89

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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.