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Finding the Fourth Proportional to 403,076.60, 604,469.10 and 163,089.80

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Solution

The fourth proportional to 403,076.60, 604,469.10 and 163,089.80 is: 244,575.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,076.60 : 604,469.10 = 163,089.80 : x
  2. Step 2: Convert to fraction form
    403,076.60/604,469.10 = 163,089.80/x
  3. Step 3: Cross multiply
    403,076.60x = 604,469.10 × 163,089.80
  4. Step 4: Simplify right side
    403,076.60x = 98,582,744,625.18
  5. Step 5: Solve for x
    x = 98,582,744,625.18/403,076.60
  6. Step 6: Final answer
    x = 244,575.71

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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.