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Finding the Fourth Proportional to 103,305.80, 154,958.70 and 36,748.10

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Solution

The fourth proportional to 103,305.80, 154,958.70 and 36,748.10 is: 55,122.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,305.80 : 154,958.70 = 36,748.10 : x
  2. Step 2: Convert to fraction form
    103,305.80/154,958.70 = 36,748.10/x
  3. Step 3: Cross multiply
    103,305.80x = 154,958.70 × 36,748.10
  4. Step 4: Simplify right side
    103,305.80x = 5,694,437,803.47
  5. Step 5: Solve for x
    x = 5,694,437,803.47/103,305.80
  6. Step 6: Final answer
    x = 55,122.15

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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.