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Finding the Fourth Proportional to 128,563.43, 192,969.51 and 62,050.37

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Solution

The fourth proportional to 128,563.43, 192,969.51 and 62,050.37 is: 93,135.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,563.43 : 192,969.51 = 62,050.37 : x
  2. Step 2: Convert to fraction form
    128,563.43/192,969.51 = 62,050.37/x
  3. Step 3: Cross multiply
    128,563.43x = 192,969.51 × 62,050.37
  4. Step 4: Simplify right side
    128,563.43x = 11,973,828,529.37
  5. Step 5: Solve for x
    x = 11,973,828,529.37/128,563.43
  6. Step 6: Final answer
    x = 93,135.58

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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.