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Finding the Fourth Proportional to 353,630.60, 530,445.90 and 164,090.60

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Solution

The fourth proportional to 353,630.60, 530,445.90 and 164,090.60 is: 246,135.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,630.60 : 530,445.90 = 164,090.60 : x
  2. Step 2: Convert to fraction form
    353,630.60/530,445.90 = 164,090.60/x
  3. Step 3: Cross multiply
    353,630.60x = 530,445.90 × 164,090.60
  4. Step 4: Simplify right side
    353,630.60x = 87,041,185,998.54
  5. Step 5: Solve for x
    x = 87,041,185,998.54/353,630.60
  6. Step 6: Final answer
    x = 246,135.90

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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.