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Finding the Fourth Proportional to 106,866, 147,472.20 and 60,933.96

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Solution

The fourth proportional to 106,866, 147,472.20 and 60,933.96 is: 84,087.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,866 : 147,472.20 = 60,933.96 : x
  2. Step 2: Convert to fraction form
    106,866/147,472.20 = 60,933.96/x
  3. Step 3: Cross multiply
    106,866x = 147,472.20 × 60,933.96
  4. Step 4: Simplify right side
    106,866x = 8,986,065,135.91
  5. Step 5: Solve for x
    x = 8,986,065,135.91/106,866
  6. Step 6: Final answer
    x = 84,087.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.