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Finding the Fourth Proportional to 103,613.60, 155,420.64 and 44,410.88

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Solution

The fourth proportional to 103,613.60, 155,420.64 and 44,410.88 is: 66,616.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,613.60 : 155,420.64 = 44,410.88 : x
  2. Step 2: Convert to fraction form
    103,613.60/155,420.64 = 44,410.88/x
  3. Step 3: Cross multiply
    103,613.60x = 155,420.64 × 44,410.88
  4. Step 4: Simplify right side
    103,613.60x = 6,902,367,392.56
  5. Step 5: Solve for x
    x = 6,902,367,392.56/103,613.60
  6. Step 6: Final answer
    x = 66,616.42

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1.5x scale

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.