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Finding the Fourth Proportional to 144,671.40, 217,147.17 and 69,844.07

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Solution

The fourth proportional to 144,671.40, 217,147.17 and 69,844.07 is: 104,833.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,671.40 : 217,147.17 = 69,844.07 : x
  2. Step 2: Convert to fraction form
    144,671.40/217,147.17 = 69,844.07/x
  3. Step 3: Cross multiply
    144,671.40x = 217,147.17 × 69,844.07
  4. Step 4: Simplify right side
    144,671.40x = 15,166,442,946.57
  5. Step 5: Solve for x
    x = 15,166,442,946.57/144,671.40
  6. Step 6: Final answer
    x = 104,833.73

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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.