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Finding the Fourth Proportional to 104,433.60, 156,650.40 and 30,561.60

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Solution

The fourth proportional to 104,433.60, 156,650.40 and 30,561.60 is: 45,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,433.60 : 156,650.40 = 30,561.60 : x
  2. Step 2: Convert to fraction form
    104,433.60/156,650.40 = 30,561.60/x
  3. Step 3: Cross multiply
    104,433.60x = 156,650.40 × 30,561.60
  4. Step 4: Simplify right side
    104,433.60x = 4,787,486,864.64
  5. Step 5: Solve for x
    x = 4,787,486,864.64/104,433.60
  6. Step 6: Final answer
    x = 45,842.40

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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.