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Finding the Fourth Proportional to 144,785.82, 217,099.79 and 43,569.07

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Solution

The fourth proportional to 144,785.82, 217,099.79 and 43,569.07 is: 65,329.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,785.82 : 217,099.79 = 43,569.07 : x
  2. Step 2: Convert to fraction form
    144,785.82/217,099.79 = 43,569.07/x
  3. Step 3: Cross multiply
    144,785.82x = 217,099.79 × 43,569.07
  4. Step 4: Simplify right side
    144,785.82x = 9,458,835,186.90
  5. Step 5: Solve for x
    x = 9,458,835,186.90/144,785.82
  6. Step 6: Final answer
    x = 65,329.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.