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Finding the Fourth Proportional to 133,107.79, 183,692.54 and 72,682.27

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Solution

The fourth proportional to 133,107.79, 183,692.54 and 72,682.27 is: 100,303.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,107.79 : 183,692.54 = 72,682.27 : x
  2. Step 2: Convert to fraction form
    133,107.79/183,692.54 = 72,682.27/x
  3. Step 3: Cross multiply
    133,107.79x = 183,692.54 × 72,682.27
  4. Step 4: Simplify right side
    133,107.79x = 13,351,190,789.27
  5. Step 5: Solve for x
    x = 13,351,190,789.27/133,107.79
  6. Step 6: Final answer
    x = 100,303.60

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1.5x scale

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.