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Finding the Fourth Proportional to 243,610.22, 365,445.03 and 103,321.46

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Solution

The fourth proportional to 243,610.22, 365,445.03 and 103,321.46 is: 154,994.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,610.22 : 365,445.03 = 103,321.46 : x
  2. Step 2: Convert to fraction form
    243,610.22/365,445.03 = 103,321.46/x
  3. Step 3: Cross multiply
    243,610.22x = 365,445.03 × 103,321.46
  4. Step 4: Simplify right side
    243,610.22x = 37,758,314,049.34
  5. Step 5: Solve for x
    x = 37,758,314,049.34/243,610.22
  6. Step 6: Final answer
    x = 154,994.79

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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.