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Finding the Fourth Proportional to 103,044.10, 154,238.10 and 73,519.60

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Solution

The fourth proportional to 103,044.10, 154,238.10 and 73,519.60 is: 110,045.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,044.10 : 154,238.10 = 73,519.60 : x
  2. Step 2: Convert to fraction form
    103,044.10/154,238.10 = 73,519.60/x
  3. Step 3: Cross multiply
    103,044.10x = 154,238.10 × 73,519.60
  4. Step 4: Simplify right side
    103,044.10x = 11,339,523,416.76
  5. Step 5: Solve for x
    x = 11,339,523,416.76/103,044.10
  6. Step 6: Final answer
    x = 110,045.34

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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.