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Finding the Fourth Proportional to 111,381.80, 166,878.30 and 95,829.80

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Solution

The fourth proportional to 111,381.80, 166,878.30 and 95,829.80 is: 143,577.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,381.80 : 166,878.30 = 95,829.80 : x
  2. Step 2: Convert to fraction form
    111,381.80/166,878.30 = 95,829.80/x
  3. Step 3: Cross multiply
    111,381.80x = 166,878.30 × 95,829.80
  4. Step 4: Simplify right side
    111,381.80x = 15,991,914,113.34
  5. Step 5: Solve for x
    x = 15,991,914,113.34/111,381.80
  6. Step 6: Final answer
    x = 143,577.44

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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.