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Finding the Fourth Proportional to 173,406.95, 260,135.20 and 53,474.03

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Solution

The fourth proportional to 173,406.95, 260,135.20 and 53,474.03 is: 80,218.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,406.95 : 260,135.20 = 53,474.03 : x
  2. Step 2: Convert to fraction form
    173,406.95/260,135.20 = 53,474.03/x
  3. Step 3: Cross multiply
    173,406.95x = 260,135.20 × 53,474.03
  4. Step 4: Simplify right side
    173,406.95x = 13,910,477,488.86
  5. Step 5: Solve for x
    x = 13,910,477,488.86/173,406.95
  6. Step 6: Final answer
    x = 80,218.68

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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.