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Finding the Fourth Proportional to 172,992.83, 259,532.45 and 48,332.75

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Solution

The fourth proportional to 172,992.83, 259,532.45 and 48,332.75 is: 72,511.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,992.83 : 259,532.45 = 48,332.75 : x
  2. Step 2: Convert to fraction form
    172,992.83/259,532.45 = 48,332.75/x
  3. Step 3: Cross multiply
    172,992.83x = 259,532.45 × 48,332.75
  4. Step 4: Simplify right side
    172,992.83x = 12,543,916,781.07
  5. Step 5: Solve for x
    x = 12,543,916,781.07/172,992.83
  6. Step 6: Final answer
    x = 72,511.19

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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.