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Finding the Fourth Proportional to 243,846.78, 365,733.20 and 66,367.62

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Solution

The fourth proportional to 243,846.78, 365,733.20 and 66,367.62 is: 99,541.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,846.78 : 365,733.20 = 66,367.62 : x
  2. Step 2: Convert to fraction form
    243,846.78/365,733.20 = 66,367.62/x
  3. Step 3: Cross multiply
    243,846.78x = 365,733.20 × 66,367.62
  4. Step 4: Simplify right side
    243,846.78x = 24,272,842,038.98
  5. Step 5: Solve for x
    x = 24,272,842,038.98/243,846.78
  6. Step 6: Final answer
    x = 99,541.37

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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.