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Finding the Fourth Proportional to 114,616.80, 171,925.20 and 108,493.20

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Solution

The fourth proportional to 114,616.80, 171,925.20 and 108,493.20 is: 162,739.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,616.80 : 171,925.20 = 108,493.20 : x
  2. Step 2: Convert to fraction form
    114,616.80/171,925.20 = 108,493.20/x
  3. Step 3: Cross multiply
    114,616.80x = 171,925.20 × 108,493.20
  4. Step 4: Simplify right side
    114,616.80x = 18,652,715,108.64
  5. Step 5: Solve for x
    x = 18,652,715,108.64/114,616.80
  6. Step 6: Final answer
    x = 162,739.80

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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.