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Finding the Fourth Proportional to 243,347.10, 365,020.65 and 222,351.90

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Solution

The fourth proportional to 243,347.10, 365,020.65 and 222,351.90 is: 333,527.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,347.10 : 365,020.65 = 222,351.90 : x
  2. Step 2: Convert to fraction form
    243,347.10/365,020.65 = 222,351.90/x
  3. Step 3: Cross multiply
    243,347.10x = 365,020.65 × 222,351.90
  4. Step 4: Simplify right side
    243,347.10x = 81,163,035,066.74
  5. Step 5: Solve for x
    x = 81,163,035,066.74/243,347.10
  6. Step 6: Final answer
    x = 333,527.85

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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.