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Finding the Fourth Proportional to 103,298.44, 154,615.49 and 53,310.45

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Solution

The fourth proportional to 103,298.44, 154,615.49 and 53,310.45 is: 79,794.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,298.44 : 154,615.49 = 53,310.45 : x
  2. Step 2: Convert to fraction form
    103,298.44/154,615.49 = 53,310.45/x
  3. Step 3: Cross multiply
    103,298.44x = 154,615.49 × 53,310.45
  4. Step 4: Simplify right side
    103,298.44x = 8,242,621,348.87
  5. Step 5: Solve for x
    x = 8,242,621,348.87/103,298.44
  6. Step 6: Final answer
    x = 79,794.25

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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.