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Finding the Fourth Proportional to 483,498.70, 724,992.90 and 163,540.60

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Solution

The fourth proportional to 483,498.70, 724,992.90 and 163,540.60 is: 245,224.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,498.70 : 724,992.90 = 163,540.60 : x
  2. Step 2: Convert to fraction form
    483,498.70/724,992.90 = 163,540.60/x
  3. Step 3: Cross multiply
    483,498.70x = 724,992.90 × 163,540.60
  4. Step 4: Simplify right side
    483,498.70x = 118,565,773,861.74
  5. Step 5: Solve for x
    x = 118,565,773,861.74/483,498.70
  6. Step 6: Final answer
    x = 245,224.60

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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.