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Finding the Fourth Proportional to 144,943.60, 217,415.40 and 132,696.40

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Solution

The fourth proportional to 144,943.60, 217,415.40 and 132,696.40 is: 199,044.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,943.60 : 217,415.40 = 132,696.40 : x
  2. Step 2: Convert to fraction form
    144,943.60/217,415.40 = 132,696.40/x
  3. Step 3: Cross multiply
    144,943.60x = 217,415.40 × 132,696.40
  4. Step 4: Simplify right side
    144,943.60x = 28,850,240,884.56
  5. Step 5: Solve for x
    x = 28,850,240,884.56/144,943.60
  6. Step 6: Final answer
    x = 199,044.60

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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.