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Finding the Fourth Proportional to 135,855.64, 203,562.10 and 83,154.52

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Solution

The fourth proportional to 135,855.64, 203,562.10 and 83,154.52 is: 124,596.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,855.64 : 203,562.10 = 83,154.52 : x
  2. Step 2: Convert to fraction form
    135,855.64/203,562.10 = 83,154.52/x
  3. Step 3: Cross multiply
    135,855.64x = 203,562.10 × 83,154.52
  4. Step 4: Simplify right side
    135,855.64x = 16,927,108,715.69
  5. Step 5: Solve for x
    x = 16,927,108,715.69/135,855.64
  6. Step 6: Final answer
    x = 124,596.29

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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.