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Finding the Fourth Proportional to 172,699.56, 259,050.56 and 60,379.29

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Solution

The fourth proportional to 172,699.56, 259,050.56 and 60,379.29 is: 90,569.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,699.56 : 259,050.56 = 60,379.29 : x
  2. Step 2: Convert to fraction form
    172,699.56/259,050.56 = 60,379.29/x
  3. Step 3: Cross multiply
    172,699.56x = 259,050.56 × 60,379.29
  4. Step 4: Simplify right side
    172,699.56x = 15,641,288,585.01
  5. Step 5: Solve for x
    x = 15,641,288,585.01/172,699.56
  6. Step 6: Final answer
    x = 90,569.36

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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.