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Finding the Fourth Proportional to 316,958.83, 437,383.35 and 173,708.71

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Solution

The fourth proportional to 316,958.83, 437,383.35 and 173,708.71 is: 239,707.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,958.83 : 437,383.35 = 173,708.71 : x
  2. Step 2: Convert to fraction form
    316,958.83/437,383.35 = 173,708.71/x
  3. Step 3: Cross multiply
    316,958.83x = 437,383.35 × 173,708.71
  4. Step 4: Simplify right side
    316,958.83x = 75,977,297,503.98
  5. Step 5: Solve for x
    x = 75,977,297,503.98/316,958.83
  6. Step 6: Final answer
    x = 239,707.15

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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.