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Finding the Fourth Proportional to 73,161.88, 109,470.66 and 43,595.80

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Solution

The fourth proportional to 73,161.88, 109,470.66 and 43,595.80 is: 65,231.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,161.88 : 109,470.66 = 43,595.80 : x
  2. Step 2: Convert to fraction form
    73,161.88/109,470.66 = 43,595.80/x
  3. Step 3: Cross multiply
    73,161.88x = 109,470.66 × 43,595.80
  4. Step 4: Simplify right side
    73,161.88x = 4,772,460,999.23
  5. Step 5: Solve for x
    x = 4,772,460,999.23/73,161.88
  6. Step 6: Final answer
    x = 65,231.52

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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.