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Finding the Fourth Proportional to 149,562.30, 224,343.45 and 86,576.70

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Solution

The fourth proportional to 149,562.30, 224,343.45 and 86,576.70 is: 129,865.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,562.30 : 224,343.45 = 86,576.70 : x
  2. Step 2: Convert to fraction form
    149,562.30/224,343.45 = 86,576.70/x
  3. Step 3: Cross multiply
    149,562.30x = 224,343.45 × 86,576.70
  4. Step 4: Simplify right side
    149,562.30x = 19,422,915,567.62
  5. Step 5: Solve for x
    x = 19,422,915,567.62/149,562.30
  6. Step 6: Final answer
    x = 129,865.05

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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.