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Finding the Fourth Proportional to 192,958.48, 266,302.43 and 111,289.92

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Solution

The fourth proportional to 192,958.48, 266,302.43 and 111,289.92 is: 153,591.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,958.48 : 266,302.43 = 111,289.92 : x
  2. Step 2: Convert to fraction form
    192,958.48/266,302.43 = 111,289.92/x
  3. Step 3: Cross multiply
    192,958.48x = 266,302.43 × 111,289.92
  4. Step 4: Simplify right side
    192,958.48x = 29,636,776,130.51
  5. Step 5: Solve for x
    x = 29,636,776,130.51/192,958.48
  6. Step 6: Final answer
    x = 153,591.47

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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.