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Finding the Fourth Proportional to 74,190.54, 102,326.46 and 63,859.88

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Solution

The fourth proportional to 74,190.54, 102,326.46 and 63,859.88 is: 88,078.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,190.54 : 102,326.46 = 63,859.88 : x
  2. Step 2: Convert to fraction form
    74,190.54/102,326.46 = 63,859.88/x
  3. Step 3: Cross multiply
    74,190.54x = 102,326.46 × 63,859.88
  4. Step 4: Simplify right side
    74,190.54x = 6,534,555,472.77
  5. Step 5: Solve for x
    x = 6,534,555,472.77/74,190.54
  6. Step 6: Final answer
    x = 88,078.01

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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.