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Finding the Fourth Proportional to 466,645.77, 699,969.11 and 129,686.49

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Solution

The fourth proportional to 466,645.77, 699,969.11 and 129,686.49 is: 194,529.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,645.77 : 699,969.11 = 129,686.49 : x
  2. Step 2: Convert to fraction form
    466,645.77/699,969.11 = 129,686.49/x
  3. Step 3: Cross multiply
    466,645.77x = 699,969.11 × 129,686.49
  4. Step 4: Simplify right side
    466,645.77x = 90,776,536,335.89
  5. Step 5: Solve for x
    x = 90,776,536,335.89/466,645.77
  6. Step 6: Final answer
    x = 194,529.86

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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.