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Finding the Fourth Proportional to 133,133.10, 183,716.82 and 72,692.10

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Solution

The fourth proportional to 133,133.10, 183,716.82 and 72,692.10 is: 100,311.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,133.10 : 183,716.82 = 72,692.10 : x
  2. Step 2: Convert to fraction form
    133,133.10/183,716.82 = 72,692.10/x
  3. Step 3: Cross multiply
    133,133.10x = 183,716.82 × 72,692.10
  4. Step 4: Simplify right side
    133,133.10x = 13,354,761,451.12
  5. Step 5: Solve for x
    x = 13,354,761,451.12/133,133.10
  6. Step 6: Final answer
    x = 100,311.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.