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Finding the Fourth Proportional to 114,509.80, 171,716.10 and 55,363.60

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Solution

The fourth proportional to 114,509.80, 171,716.10 and 55,363.60 is: 83,021.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,509.80 : 171,716.10 = 55,363.60 : x
  2. Step 2: Convert to fraction form
    114,509.80/171,716.10 = 55,363.60/x
  3. Step 3: Cross multiply
    114,509.80x = 171,716.10 × 55,363.60
  4. Step 4: Simplify right side
    114,509.80x = 9,506,821,473.96
  5. Step 5: Solve for x
    x = 9,506,821,473.96/114,509.80
  6. Step 6: Final answer
    x = 83,021.90

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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.