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Finding the Fourth Proportional to 316,997.82, 475,340.94 and 156,888.36

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Solution

The fourth proportional to 316,997.82, 475,340.94 and 156,888.36 is: 235,255.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,997.82 : 475,340.94 = 156,888.36 : x
  2. Step 2: Convert to fraction form
    316,997.82/475,340.94 = 156,888.36/x
  3. Step 3: Cross multiply
    316,997.82x = 475,340.94 × 156,888.36
  4. Step 4: Simplify right side
    316,997.82x = 74,575,460,517.46
  5. Step 5: Solve for x
    x = 74,575,460,517.46/316,997.82
  6. Step 6: Final answer
    x = 235,255.44

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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.