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Finding the Fourth Proportional to 172,969.36, 259,432.57 and 46,619.48

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Solution

The fourth proportional to 172,969.36, 259,432.57 and 46,619.48 is: 69,923.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,969.36 : 259,432.57 = 46,619.48 : x
  2. Step 2: Convert to fraction form
    172,969.36/259,432.57 = 46,619.48/x
  3. Step 3: Cross multiply
    172,969.36x = 259,432.57 × 46,619.48
  4. Step 4: Simplify right side
    172,969.36x = 12,094,612,215.32
  5. Step 5: Solve for x
    x = 12,094,612,215.32/172,969.36
  6. Step 6: Final answer
    x = 69,923.44

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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.