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Finding the Fourth Proportional to 114,600.80, 171,949.80 and 72,513.20

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Solution

The fourth proportional to 114,600.80, 171,949.80 and 72,513.20 is: 108,800.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,600.80 : 171,949.80 = 72,513.20 : x
  2. Step 2: Convert to fraction form
    114,600.80/171,949.80 = 72,513.20/x
  3. Step 3: Cross multiply
    114,600.80x = 171,949.80 × 72,513.20
  4. Step 4: Simplify right side
    114,600.80x = 12,468,630,237.36
  5. Step 5: Solve for x
    x = 12,468,630,237.36/114,600.80
  6. Step 6: Final answer
    x = 108,800.55

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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.