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Finding the Fourth Proportional to 297,871.85, 446,556.64 and 129,265.16

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Solution

The fourth proportional to 297,871.85, 446,556.64 and 129,265.16 is: 193,788.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,871.85 : 446,556.64 = 129,265.16 : x
  2. Step 2: Convert to fraction form
    297,871.85/446,556.64 = 129,265.16/x
  3. Step 3: Cross multiply
    297,871.85x = 446,556.64 × 129,265.16
  4. Step 4: Simplify right side
    297,871.85x = 57,724,212,962.72
  5. Step 5: Solve for x
    x = 57,724,212,962.72/297,871.85
  6. Step 6: Final answer
    x = 193,788.75

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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.