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Finding the Fourth Proportional to 172,980.05, 259,450.76 and 46,632.87

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Solution

The fourth proportional to 172,980.05, 259,450.76 and 46,632.87 is: 69,944.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,980.05 : 259,450.76 = 46,632.87 : x
  2. Step 2: Convert to fraction form
    172,980.05/259,450.76 = 46,632.87/x
  3. Step 3: Cross multiply
    172,980.05x = 259,450.76 × 46,632.87
  4. Step 4: Simplify right side
    172,980.05x = 12,098,933,329.32
  5. Step 5: Solve for x
    x = 12,098,933,329.32/172,980.05
  6. Step 6: Final answer
    x = 69,944.10

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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.