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Finding the Fourth Proportional to 316,698.88, 437,044.64 and 173,458.88

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Solution

The fourth proportional to 316,698.88, 437,044.64 and 173,458.88 is: 239,373.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,698.88 : 437,044.64 = 173,458.88 : x
  2. Step 2: Convert to fraction form
    316,698.88/437,044.64 = 173,458.88/x
  3. Step 3: Cross multiply
    316,698.88x = 437,044.64 × 173,458.88
  4. Step 4: Simplify right side
    316,698.88x = 75,809,273,764.40
  5. Step 5: Solve for x
    x = 75,809,273,764.40/316,698.88
  6. Step 6: Final answer
    x = 239,373.36

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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.