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Finding the Fourth Proportional to 103,189.55, 154,799.70 and 36,624.10

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Solution

The fourth proportional to 103,189.55, 154,799.70 and 36,624.10 is: 54,941.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,189.55 : 154,799.70 = 36,624.10 : x
  2. Step 2: Convert to fraction form
    103,189.55/154,799.70 = 36,624.10/x
  3. Step 3: Cross multiply
    103,189.55x = 154,799.70 × 36,624.10
  4. Step 4: Simplify right side
    103,189.55x = 5,669,400,493.32
  5. Step 5: Solve for x
    x = 5,669,400,493.32/103,189.55
  6. Step 6: Final answer
    x = 54,941.61

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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.