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Finding the Fourth Proportional to 173,866.89, 260,769.51 and 79,074.87

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Solution

The fourth proportional to 173,866.89, 260,769.51 and 79,074.87 is: 118,598.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,866.89 : 260,769.51 = 79,074.87 : x
  2. Step 2: Convert to fraction form
    173,866.89/260,769.51 = 79,074.87/x
  3. Step 3: Cross multiply
    173,866.89x = 260,769.51 × 79,074.87
  4. Step 4: Simplify right side
    173,866.89x = 20,620,315,103.21
  5. Step 5: Solve for x
    x = 20,620,315,103.21/173,866.89
  6. Step 6: Final answer
    x = 118,598.29

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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.