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Finding the Fourth Proportional to 172,873.52, 259,310.32 and 54,554.08

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Solution

The fourth proportional to 172,873.52, 259,310.32 and 54,554.08 is: 81,831.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,873.52 : 259,310.32 = 54,554.08 : x
  2. Step 2: Convert to fraction form
    172,873.52/259,310.32 = 54,554.08/x
  3. Step 3: Cross multiply
    172,873.52x = 259,310.32 × 54,554.08
  4. Step 4: Simplify right side
    172,873.52x = 14,146,435,942.11
  5. Step 5: Solve for x
    x = 14,146,435,942.11/172,873.52
  6. Step 6: Final answer
    x = 81,831.13

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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.