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Finding the Fourth Proportional to 324,871.77, 448,143.05 and 188,890.69

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Solution

The fourth proportional to 324,871.77, 448,143.05 and 188,890.69 is: 260,564.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,871.77 : 448,143.05 = 188,890.69 : x
  2. Step 2: Convert to fraction form
    324,871.77/448,143.05 = 188,890.69/x
  3. Step 3: Cross multiply
    324,871.77x = 448,143.05 × 188,890.69
  4. Step 4: Simplify right side
    324,871.77x = 84,650,047,692.49
  5. Step 5: Solve for x
    x = 84,650,047,692.49/324,871.77
  6. Step 6: Final answer
    x = 260,564.49

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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.