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Finding the Fourth Proportional to 103,209, 154,839.51 and 29,337

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Solution

The fourth proportional to 103,209, 154,839.51 and 29,337 is: 44,012.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,209 : 154,839.51 = 29,337 : x
  2. Step 2: Convert to fraction form
    103,209/154,839.51 = 29,337/x
  3. Step 3: Cross multiply
    103,209x = 154,839.51 × 29,337
  4. Step 4: Simplify right side
    103,209x = 4,542,526,704.87
  5. Step 5: Solve for x
    x = 4,542,526,704.87/103,209
  6. Step 6: Final answer
    x = 44,012.89

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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.