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Finding the Fourth Proportional to 316,262.53, 436,442.07 and 173,022.67

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Solution

The fourth proportional to 316,262.53, 436,442.07 and 173,022.67 is: 238,771.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,262.53 : 436,442.07 = 173,022.67 : x
  2. Step 2: Convert to fraction form
    316,262.53/436,442.07 = 173,022.67/x
  3. Step 3: Cross multiply
    316,262.53x = 436,442.07 × 173,022.67
  4. Step 4: Simplify right side
    316,262.53x = 75,514,372,251.73
  5. Step 5: Solve for x
    x = 75,514,372,251.73/316,262.53
  6. Step 6: Final answer
    x = 238,771.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.