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Finding the Fourth Proportional to 362,221.45, 543,110.63 and 172,739.77

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Solution

The fourth proportional to 362,221.45, 543,110.63 and 172,739.77 is: 259,004.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,221.45 : 543,110.63 = 172,739.77 : x
  2. Step 2: Convert to fraction form
    362,221.45/543,110.63 = 172,739.77/x
  3. Step 3: Cross multiply
    362,221.45x = 543,110.63 × 172,739.77
  4. Step 4: Simplify right side
    362,221.45x = 93,816,803,705.94
  5. Step 5: Solve for x
    x = 93,816,803,705.94/362,221.45
  6. Step 6: Final answer
    x = 259,004.00

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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.