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Finding the Fourth Proportional to 132,687.66, 183,109.05 and 73,071.66

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Solution

The fourth proportional to 132,687.66, 183,109.05 and 73,071.66 is: 100,838.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,687.66 : 183,109.05 = 73,071.66 : x
  2. Step 2: Convert to fraction form
    132,687.66/183,109.05 = 73,071.66/x
  3. Step 3: Cross multiply
    132,687.66x = 183,109.05 × 73,071.66
  4. Step 4: Simplify right side
    132,687.66x = 13,380,082,244.52
  5. Step 5: Solve for x
    x = 13,380,082,244.52/132,687.66
  6. Step 6: Final answer
    x = 100,838.93

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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.