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Finding the Fourth Proportional to 243,992.70, 365,940.45 and 117,632.70

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Solution

The fourth proportional to 243,992.70, 365,940.45 and 117,632.70 is: 176,425.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,992.70 : 365,940.45 = 117,632.70 : x
  2. Step 2: Convert to fraction form
    243,992.70/365,940.45 = 117,632.70/x
  3. Step 3: Cross multiply
    243,992.70x = 365,940.45 × 117,632.70
  4. Step 4: Simplify right side
    243,992.70x = 43,046,563,172.72
  5. Step 5: Solve for x
    x = 43,046,563,172.72/243,992.70
  6. Step 6: Final answer
    x = 176,425.62

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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.