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Finding the Fourth Proportional to 111,381.30, 166,877.55 and 95,829.30

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Solution

The fourth proportional to 111,381.30, 166,877.55 and 95,829.30 is: 143,576.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,381.30 : 166,877.55 = 95,829.30 : x
  2. Step 2: Convert to fraction form
    111,381.30/166,877.55 = 95,829.30/x
  3. Step 3: Cross multiply
    111,381.30x = 166,877.55 × 95,829.30
  4. Step 4: Simplify right side
    111,381.30x = 15,991,758,802.22
  5. Step 5: Solve for x
    x = 15,991,758,802.22/111,381.30
  6. Step 6: Final answer
    x = 143,576.69

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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.