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Finding the Fourth Proportional to 133,162.77, 183,763.68 and 72,733.43

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Solution

The fourth proportional to 133,162.77, 183,763.68 and 72,733.43 is: 100,371.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,162.77 : 183,763.68 = 72,733.43 : x
  2. Step 2: Convert to fraction form
    133,162.77/183,763.68 = 72,733.43/x
  3. Step 3: Cross multiply
    133,162.77x = 183,763.68 × 72,733.43
  4. Step 4: Simplify right side
    133,162.77x = 13,365,762,755.82
  5. Step 5: Solve for x
    x = 13,365,762,755.82/133,162.77
  6. Step 6: Final answer
    x = 100,371.62

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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.