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Finding the Fourth Proportional to 243,453.75, 365,197.19 and 74,963.67

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Solution

The fourth proportional to 243,453.75, 365,197.19 and 74,963.67 is: 112,450.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,453.75 : 365,197.19 = 74,963.67 : x
  2. Step 2: Convert to fraction form
    243,453.75/365,197.19 = 74,963.67/x
  3. Step 3: Cross multiply
    243,453.75x = 365,197.19 × 74,963.67
  4. Step 4: Simplify right side
    243,453.75x = 27,376,521,261.27
  5. Step 5: Solve for x
    x = 27,376,521,261.27/243,453.75
  6. Step 6: Final answer
    x = 112,450.60

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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.