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Finding the Fourth Proportional to 172,375.60, 258,563.34 and 54,056.02

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Solution

The fourth proportional to 172,375.60, 258,563.34 and 54,056.02 is: 81,084.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,375.60 : 258,563.34 = 54,056.02 : x
  2. Step 2: Convert to fraction form
    172,375.60/258,563.34 = 54,056.02/x
  3. Step 3: Cross multiply
    172,375.60x = 258,563.34 × 54,056.02
  4. Step 4: Simplify right side
    172,375.60x = 13,976,905,078.31
  5. Step 5: Solve for x
    x = 13,976,905,078.31/172,375.60
  6. Step 6: Final answer
    x = 81,084.01

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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.