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Finding the Fourth Proportional to 180,403.50, 248,939.91 and 107,791.94

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Solution

The fourth proportional to 180,403.50, 248,939.91 and 107,791.94 is: 148,742.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,403.50 : 248,939.91 = 107,791.94 : x
  2. Step 2: Convert to fraction form
    180,403.50/248,939.91 = 107,791.94/x
  3. Step 3: Cross multiply
    180,403.50x = 248,939.91 × 107,791.94
  4. Step 4: Simplify right side
    180,403.50x = 26,833,714,597.63
  5. Step 5: Solve for x
    x = 26,833,714,597.63/180,403.50
  6. Step 6: Final answer
    x = 148,742.76

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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.