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Finding the Fourth Proportional to 172,409.00, 258,530.20 and 60,086.57

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Solution

The fourth proportional to 172,409.00, 258,530.20 and 60,086.57 is: 90,100.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,409.00 : 258,530.20 = 60,086.57 : x
  2. Step 2: Convert to fraction form
    172,409.00/258,530.20 = 60,086.57/x
  3. Step 3: Cross multiply
    172,409.00x = 258,530.20 × 60,086.57
  4. Step 4: Simplify right side
    172,409.00x = 15,534,191,516.55
  5. Step 5: Solve for x
    x = 15,534,191,516.55/172,409.00
  6. Step 6: Final answer
    x = 90,100.82

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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.