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Finding the Fourth Proportional to 172,779.86, 259,168.74 and 44,696.16

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Solution

The fourth proportional to 172,779.86, 259,168.74 and 44,696.16 is: 67,043.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,779.86 : 259,168.74 = 44,696.16 : x
  2. Step 2: Convert to fraction form
    172,779.86/259,168.74 = 44,696.16/x
  3. Step 3: Cross multiply
    172,779.86x = 259,168.74 × 44,696.16
  4. Step 4: Simplify right side
    172,779.86x = 11,583,847,470.04
  5. Step 5: Solve for x
    x = 11,583,847,470.04/172,779.86
  6. Step 6: Final answer
    x = 67,043.97

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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.