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Finding the Fourth Proportional to 176,556.80, 264,662.40 and 71,235.20

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Solution

The fourth proportional to 176,556.80, 264,662.40 and 71,235.20 is: 106,783.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,556.80 : 264,662.40 = 71,235.20 : x
  2. Step 2: Convert to fraction form
    176,556.80/264,662.40 = 71,235.20/x
  3. Step 3: Cross multiply
    176,556.80x = 264,662.40 × 71,235.20
  4. Step 4: Simplify right side
    176,556.80x = 18,853,278,996.48
  5. Step 5: Solve for x
    x = 18,853,278,996.48/176,556.80
  6. Step 6: Final answer
    x = 106,783.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.