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Finding the Fourth Proportional to 259,098.89, 388,352.88 and 118,562.27

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Solution

The fourth proportional to 259,098.89, 388,352.88 and 118,562.27 is: 177,708.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,098.89 : 388,352.88 = 118,562.27 : x
  2. Step 2: Convert to fraction form
    259,098.89/388,352.88 = 118,562.27/x
  3. Step 3: Cross multiply
    259,098.89x = 388,352.88 × 118,562.27
  4. Step 4: Simplify right side
    259,098.89x = 46,043,997,072.07
  5. Step 5: Solve for x
    x = 46,043,997,072.07/259,098.89
  6. Step 6: Final answer
    x = 177,708.20

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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.