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Finding the Fourth Proportional to 222,415.30, 333,622.95 and 127,936.90

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Solution

The fourth proportional to 222,415.30, 333,622.95 and 127,936.90 is: 191,905.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,415.30 : 333,622.95 = 127,936.90 : x
  2. Step 2: Convert to fraction form
    222,415.30/333,622.95 = 127,936.90/x
  3. Step 3: Cross multiply
    222,415.30x = 333,622.95 × 127,936.90
  4. Step 4: Simplify right side
    222,415.30x = 42,682,685,991.86
  5. Step 5: Solve for x
    x = 42,682,685,991.86/222,415.30
  6. Step 6: Final answer
    x = 191,905.35

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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.