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Finding the Fourth Proportional to 172,609.32, 258,912.54 and 44,525.28

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Solution

The fourth proportional to 172,609.32, 258,912.54 and 44,525.28 is: 66,787.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,609.32 : 258,912.54 = 44,525.28 : x
  2. Step 2: Convert to fraction form
    172,609.32/258,912.54 = 44,525.28/x
  3. Step 3: Cross multiply
    172,609.32x = 258,912.54 × 44,525.28
  4. Step 4: Simplify right side
    172,609.32x = 11,528,153,339.01
  5. Step 5: Solve for x
    x = 11,528,153,339.01/172,609.32
  6. Step 6: Final answer
    x = 66,787.55

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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.