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Finding the Fourth Proportional to 155,679.44, 214,763.04 and 149,643.92

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Solution

The fourth proportional to 155,679.44, 214,763.04 and 149,643.92 is: 206,436.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,679.44 : 214,763.04 = 149,643.92 : x
  2. Step 2: Convert to fraction form
    155,679.44/214,763.04 = 149,643.92/x
  3. Step 3: Cross multiply
    155,679.44x = 214,763.04 × 149,643.92
  4. Step 4: Simplify right side
    155,679.44x = 32,137,983,176.72
  5. Step 5: Solve for x
    x = 32,137,983,176.72/155,679.44
  6. Step 6: Final answer
    x = 206,436.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.