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Finding the Fourth Proportional to 172,925.30, 259,414.77 and 73,085.91

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Solution

The fourth proportional to 172,925.30, 259,414.77 and 73,085.91 is: 109,640.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,925.30 : 259,414.77 = 73,085.91 : x
  2. Step 2: Convert to fraction form
    172,925.30/259,414.77 = 73,085.91/x
  3. Step 3: Cross multiply
    172,925.30x = 259,414.77 × 73,085.91
  4. Step 4: Simplify right side
    172,925.30x = 18,959,564,167.46
  5. Step 5: Solve for x
    x = 18,959,564,167.46/172,925.30
  6. Step 6: Final answer
    x = 109,640.20

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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.