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Finding the Fourth Proportional to 316,878.48, 437,296.68 and 173,635.92

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Solution

The fourth proportional to 316,878.48, 437,296.68 and 173,635.92 is: 239,619.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,878.48 : 437,296.68 = 173,635.92 : x
  2. Step 2: Convert to fraction form
    316,878.48/437,296.68 = 173,635.92/x
  3. Step 3: Cross multiply
    316,878.48x = 437,296.68 × 173,635.92
  4. Step 4: Simplify right side
    316,878.48x = 75,930,411,344.75
  5. Step 5: Solve for x
    x = 75,930,411,344.75/316,878.48
  6. Step 6: Final answer
    x = 239,619.97

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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.