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Finding the Fourth Proportional to 192,064.40, 288,139.80 and 58,950.80

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Solution

The fourth proportional to 192,064.40, 288,139.80 and 58,950.80 is: 88,439.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,064.40 : 288,139.80 = 58,950.80 : x
  2. Step 2: Convert to fraction form
    192,064.40/288,139.80 = 58,950.80/x
  3. Step 3: Cross multiply
    192,064.40x = 288,139.80 × 58,950.80
  4. Step 4: Simplify right side
    192,064.40x = 16,986,071,721.84
  5. Step 5: Solve for x
    x = 16,986,071,721.84/192,064.40
  6. Step 6: Final answer
    x = 88,439.46

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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.