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Finding the Fourth Proportional to 172,893.28, 259,339.96 and 54,573.84

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Solution

The fourth proportional to 172,893.28, 259,339.96 and 54,573.84 is: 81,860.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,893.28 : 259,339.96 = 54,573.84 : x
  2. Step 2: Convert to fraction form
    172,893.28/259,339.96 = 54,573.84/x
  3. Step 3: Cross multiply
    172,893.28x = 259,339.96 × 54,573.84
  4. Step 4: Simplify right side
    172,893.28x = 14,153,177,482.65
  5. Step 5: Solve for x
    x = 14,153,177,482.65/172,893.28
  6. Step 6: Final answer
    x = 81,860.77

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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.