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Finding the Fourth Proportional to 316,771.20, 474,893.76 and 166,927.68

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Solution

The fourth proportional to 316,771.20, 474,893.76 and 166,927.68 is: 250,252.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,771.20 : 474,893.76 = 166,927.68 : x
  2. Step 2: Convert to fraction form
    316,771.20/474,893.76 = 166,927.68/x
  3. Step 3: Cross multiply
    316,771.20x = 474,893.76 × 166,927.68
  4. Step 4: Simplify right side
    316,771.20x = 79,272,913,603.28
  5. Step 5: Solve for x
    x = 79,272,913,603.28/316,771.20
  6. Step 6: Final answer
    x = 250,252.91

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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.