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Finding the Fourth Proportional to 218,625.44, 301,703.70 and 126,762.56

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Solution

The fourth proportional to 218,625.44, 301,703.70 and 126,762.56 is: 174,932.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,625.44 : 301,703.70 = 126,762.56 : x
  2. Step 2: Convert to fraction form
    218,625.44/301,703.70 = 126,762.56/x
  3. Step 3: Cross multiply
    218,625.44x = 301,703.70 × 126,762.56
  4. Step 4: Simplify right side
    218,625.44x = 38,244,733,373.47
  5. Step 5: Solve for x
    x = 38,244,733,373.47/218,625.44
  6. Step 6: Final answer
    x = 174,932.68

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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.