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Finding the Fourth Proportional to 103,630.64, 155,445.96 and 41,301.68

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Solution

The fourth proportional to 103,630.64, 155,445.96 and 41,301.68 is: 61,952.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,630.64 : 155,445.96 = 41,301.68 : x
  2. Step 2: Convert to fraction form
    103,630.64/155,445.96 = 41,301.68/x
  3. Step 3: Cross multiply
    103,630.64x = 155,445.96 × 41,301.68
  4. Step 4: Simplify right side
    103,630.64x = 6,420,179,297.21
  5. Step 5: Solve for x
    x = 6,420,179,297.21/103,630.64
  6. Step 6: Final answer
    x = 61,952.52

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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.