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Finding the Fourth Proportional to 132,690.38, 183,104.43 and 73,074.38

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Solution

The fourth proportional to 132,690.38, 183,104.43 and 73,074.38 is: 100,838.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,690.38 : 183,104.43 = 73,074.38 : x
  2. Step 2: Convert to fraction form
    132,690.38/183,104.43 = 73,074.38/x
  3. Step 3: Cross multiply
    132,690.38x = 183,104.43 × 73,074.38
  4. Step 4: Simplify right side
    132,690.38x = 13,380,242,697.50
  5. Step 5: Solve for x
    x = 13,380,242,697.50/132,690.38
  6. Step 6: Final answer
    x = 100,838.08

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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.