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Finding the Fourth Proportional to 243,811.66, 365,477.58 and 142,481.10

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Solution

The fourth proportional to 243,811.66, 365,477.58 and 142,481.10 is: 213,581.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,811.66 : 365,477.58 = 142,481.10 : x
  2. Step 2: Convert to fraction form
    243,811.66/365,477.58 = 142,481.10/x
  3. Step 3: Cross multiply
    243,811.66x = 365,477.58 × 142,481.10
  4. Step 4: Simplify right side
    243,811.66x = 52,073,647,623.74
  5. Step 5: Solve for x
    x = 52,073,647,623.74/243,811.66
  6. Step 6: Final answer
    x = 213,581.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.