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Finding the Fourth Proportional to 174,009.72, 260,983.29 and 79,217.25

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Solution

The fourth proportional to 174,009.72, 260,983.29 and 79,217.25 is: 118,811.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,009.72 : 260,983.29 = 79,217.25 : x
  2. Step 2: Convert to fraction form
    174,009.72/260,983.29 = 79,217.25/x
  3. Step 3: Cross multiply
    174,009.72x = 260,983.29 × 79,217.25
  4. Step 4: Simplify right side
    174,009.72x = 20,674,378,529.75
  5. Step 5: Solve for x
    x = 20,674,378,529.75/174,009.72
  6. Step 6: Final answer
    x = 118,811.63

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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.