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Finding the Fourth Proportional to 115,795.71, 173,514.22 and 80,326.01

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Solution

The fourth proportional to 115,795.71, 173,514.22 and 80,326.01 is: 120,364.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,795.71 : 173,514.22 = 80,326.01 : x
  2. Step 2: Convert to fraction form
    115,795.71/173,514.22 = 80,326.01/x
  3. Step 3: Cross multiply
    115,795.71x = 173,514.22 × 80,326.01
  4. Step 4: Simplify right side
    115,795.71x = 13,937,705,203.83
  5. Step 5: Solve for x
    x = 13,937,705,203.83/115,795.71
  6. Step 6: Final answer
    x = 120,364.61

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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.