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Finding the Fourth Proportional to 351,480.67, 527,111.96 and 126,811.98

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Solution

The fourth proportional to 351,480.67, 527,111.96 and 126,811.98 is: 190,178.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,480.67 : 527,111.96 = 126,811.98 : x
  2. Step 2: Convert to fraction form
    351,480.67/527,111.96 = 126,811.98/x
  3. Step 3: Cross multiply
    351,480.67x = 527,111.96 × 126,811.98
  4. Step 4: Simplify right side
    351,480.67x = 66,844,110,695.22
  5. Step 5: Solve for x
    x = 66,844,110,695.22/351,480.67
  6. Step 6: Final answer
    x = 190,178.63

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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.