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Finding the Fourth Proportional to 172,854.90, 258,879.50 and 166,868.46

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Solution

The fourth proportional to 172,854.90, 258,879.50 and 166,868.46 is: 249,913.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,854.90 : 258,879.50 = 166,868.46 : x
  2. Step 2: Convert to fraction form
    172,854.90/258,879.50 = 166,868.46/x
  3. Step 3: Cross multiply
    172,854.90x = 258,879.50 × 166,868.46
  4. Step 4: Simplify right side
    172,854.90x = 43,198,823,490.57
  5. Step 5: Solve for x
    x = 43,198,823,490.57/172,854.90
  6. Step 6: Final answer
    x = 249,913.79

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.