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Finding the Fourth Proportional to 219,801.92, 329,692.96 and 91,665.43

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Solution

The fourth proportional to 219,801.92, 329,692.96 and 91,665.43 is: 137,494.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,801.92 : 329,692.96 = 91,665.43 : x
  2. Step 2: Convert to fraction form
    219,801.92/329,692.96 = 91,665.43/x
  3. Step 3: Cross multiply
    219,801.92x = 329,692.96 × 91,665.43
  4. Step 4: Simplify right side
    219,801.92x = 30,221,446,236.72
  5. Step 5: Solve for x
    x = 30,221,446,236.72/219,801.92
  6. Step 6: Final answer
    x = 137,494.01

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1.5x scale

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.