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Finding the Fourth Proportional to 243,617.33, 365,425.81 and 66,150.38

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Solution

The fourth proportional to 243,617.33, 365,425.81 and 66,150.38 is: 99,225.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,617.33 : 365,425.81 = 66,150.38 : x
  2. Step 2: Convert to fraction form
    243,617.33/365,425.81 = 66,150.38/x
  3. Step 3: Cross multiply
    243,617.33x = 365,425.81 × 66,150.38
  4. Step 4: Simplify right side
    243,617.33x = 24,173,054,035.43
  5. Step 5: Solve for x
    x = 24,173,054,035.43/243,617.33
  6. Step 6: Final answer
    x = 99,225.51

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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.