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Finding the Fourth Proportional to 316,917.35, 475,562.85 and 117,377.85

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Solution

The fourth proportional to 316,917.35, 475,562.85 and 117,377.85 is: 176,135.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,917.35 : 475,562.85 = 117,377.85 : x
  2. Step 2: Convert to fraction form
    316,917.35/475,562.85 = 117,377.85/x
  3. Step 3: Cross multiply
    316,917.35x = 475,562.85 × 117,377.85
  4. Step 4: Simplify right side
    316,917.35x = 55,820,544,878.55
  5. Step 5: Solve for x
    x = 55,820,544,878.55/316,917.35
  6. Step 6: Final answer
    x = 176,135.97

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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.