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Finding the Fourth Proportional to 192,400.43, 288,647.36 and 59,280.68

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Solution

The fourth proportional to 192,400.43, 288,647.36 and 59,280.68 is: 88,935.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,400.43 : 288,647.36 = 59,280.68 : x
  2. Step 2: Convert to fraction form
    192,400.43/288,647.36 = 59,280.68/x
  3. Step 3: Cross multiply
    192,400.43x = 288,647.36 × 59,280.68
  4. Step 4: Simplify right side
    192,400.43x = 17,111,212,428.52
  5. Step 5: Solve for x
    x = 17,111,212,428.52/192,400.43
  6. Step 6: Final answer
    x = 88,935.42

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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.