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Finding the Fourth Proportional to 109,621.80, 164,432.70 and 95,797.80

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Solution

The fourth proportional to 109,621.80, 164,432.70 and 95,797.80 is: 143,696.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,621.80 : 164,432.70 = 95,797.80 : x
  2. Step 2: Convert to fraction form
    109,621.80/164,432.70 = 95,797.80/x
  3. Step 3: Cross multiply
    109,621.80x = 164,432.70 × 95,797.80
  4. Step 4: Simplify right side
    109,621.80x = 15,752,290,908.06
  5. Step 5: Solve for x
    x = 15,752,290,908.06/109,621.80
  6. Step 6: Final answer
    x = 143,696.70

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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.