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Finding the Fourth Proportional to 144,911.10, 217,366.65 and 132,080.70

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Solution

The fourth proportional to 144,911.10, 217,366.65 and 132,080.70 is: 198,121.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,911.10 : 217,366.65 = 132,080.70 : x
  2. Step 2: Convert to fraction form
    144,911.10/217,366.65 = 132,080.70/x
  3. Step 3: Cross multiply
    144,911.10x = 217,366.65 × 132,080.70
  4. Step 4: Simplify right side
    144,911.10x = 28,709,939,288.66
  5. Step 5: Solve for x
    x = 28,709,939,288.66/144,911.10
  6. Step 6: Final answer
    x = 198,121.05

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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.