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Finding the Fourth Proportional to 128,559.98, 192,964.36 and 62,046.94

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Solution

The fourth proportional to 128,559.98, 192,964.36 and 62,046.94 is: 93,130.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,559.98 : 192,964.36 = 62,046.94 : x
  2. Step 2: Convert to fraction form
    128,559.98/192,964.36 = 62,046.94/x
  3. Step 3: Cross multiply
    128,559.98x = 192,964.36 × 62,046.94
  4. Step 4: Simplify right side
    128,559.98x = 11,972,846,792.00
  5. Step 5: Solve for x
    x = 11,972,846,792.00/128,559.98
  6. Step 6: Final answer
    x = 93,130.43

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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.