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Finding the Fourth Proportional to 103,165.59, 154,771.71 and 36,605.79

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Solution

The fourth proportional to 103,165.59, 154,771.71 and 36,605.79 is: 54,916.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,165.59 : 154,771.71 = 36,605.79 : x
  2. Step 2: Convert to fraction form
    103,165.59/154,771.71 = 36,605.79/x
  3. Step 3: Cross multiply
    103,165.59x = 154,771.71 × 36,605.79
  4. Step 4: Simplify right side
    103,165.59x = 5,665,540,714.20
  5. Step 5: Solve for x
    x = 5,665,540,714.20/103,165.59
  6. Step 6: Final answer
    x = 54,916.96

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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.