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Finding the Fourth Proportional to 214,711.80, 322,067.70 and 151,726.20

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Solution

The fourth proportional to 214,711.80, 322,067.70 and 151,726.20 is: 227,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,711.80 : 322,067.70 = 151,726.20 : x
  2. Step 2: Convert to fraction form
    214,711.80/322,067.70 = 151,726.20/x
  3. Step 3: Cross multiply
    214,711.80x = 322,067.70 × 151,726.20
  4. Step 4: Simplify right side
    214,711.80x = 48,866,108,263.74
  5. Step 5: Solve for x
    x = 48,866,108,263.74/214,711.80
  6. Step 6: Final answer
    x = 227,589.30

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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.