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Finding the Fourth Proportional to 192,112.56, 288,182.67 and 73,783.89

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Solution

The fourth proportional to 192,112.56, 288,182.67 and 73,783.89 is: 110,681.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,112.56 : 288,182.67 = 73,783.89 : x
  2. Step 2: Convert to fraction form
    192,112.56/288,182.67 = 73,783.89/x
  3. Step 3: Cross multiply
    192,112.56x = 288,182.67 × 73,783.89
  4. Step 4: Simplify right side
    192,112.56x = 21,263,238,423.19
  5. Step 5: Solve for x
    x = 21,263,238,423.19/192,112.56
  6. Step 6: Final answer
    x = 110,681.15

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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.