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Finding the Fourth Proportional to 173,405.99, 260,081.85 and 55,061.75

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Solution

The fourth proportional to 173,405.99, 260,081.85 and 55,061.75 is: 82,584.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,405.99 : 260,081.85 = 55,061.75 : x
  2. Step 2: Convert to fraction form
    173,405.99/260,081.85 = 55,061.75/x
  3. Step 3: Cross multiply
    173,405.99x = 260,081.85 × 55,061.75
  4. Step 4: Simplify right side
    173,405.99x = 14,320,561,804.24
  5. Step 5: Solve for x
    x = 14,320,561,804.24/173,405.99
  6. Step 6: Final answer
    x = 82,584.01

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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.