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Finding the Fourth Proportional to 167,814.40, 251,138.40 and 115,326.40

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Solution

The fourth proportional to 167,814.40, 251,138.40 and 115,326.40 is: 172,588.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,814.40 : 251,138.40 = 115,326.40 : x
  2. Step 2: Convert to fraction form
    167,814.40/251,138.40 = 115,326.40/x
  3. Step 3: Cross multiply
    167,814.40x = 251,138.40 × 115,326.40
  4. Step 4: Simplify right side
    167,814.40x = 28,962,887,573.76
  5. Step 5: Solve for x
    x = 28,962,887,573.76/167,814.40
  6. Step 6: Final answer
    x = 172,588.81

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1.5x scale

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.