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Finding the Fourth Proportional to 172,527.48, 258,788.64 and 54,205.92

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Solution

The fourth proportional to 172,527.48, 258,788.64 and 54,205.92 is: 81,308.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,527.48 : 258,788.64 = 54,205.92 : x
  2. Step 2: Convert to fraction form
    172,527.48/258,788.64 = 54,205.92/x
  3. Step 3: Cross multiply
    172,527.48x = 258,788.64 × 54,205.92
  4. Step 4: Simplify right side
    172,527.48x = 14,027,876,316.75
  5. Step 5: Solve for x
    x = 14,027,876,316.75/172,527.48
  6. Step 6: Final answer
    x = 81,308.07

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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.