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Finding the Fourth Proportional to 132,709.50, 183,139.11 and 73,093.50

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Solution

The fourth proportional to 132,709.50, 183,139.11 and 73,093.50 is: 100,869.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,709.50 : 183,139.11 = 73,093.50 : x
  2. Step 2: Convert to fraction form
    132,709.50/183,139.11 = 73,093.50/x
  3. Step 3: Cross multiply
    132,709.50x = 183,139.11 × 73,093.50
  4. Step 4: Simplify right side
    132,709.50x = 13,386,278,536.79
  5. Step 5: Solve for x
    x = 13,386,278,536.79/132,709.50
  6. Step 6: Final answer
    x = 100,869.03

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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.