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Finding the Fourth Proportional to 192,047.60, 287,908.73 and 79,657.67

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Solution

The fourth proportional to 192,047.60, 287,908.73 and 79,657.67 is: 119,419.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,047.60 : 287,908.73 = 79,657.67 : x
  2. Step 2: Convert to fraction form
    192,047.60/287,908.73 = 79,657.67/x
  3. Step 3: Cross multiply
    192,047.60x = 287,908.73 × 79,657.67
  4. Step 4: Simplify right side
    192,047.60x = 22,934,138,604.46
  5. Step 5: Solve for x
    x = 22,934,138,604.46/192,047.60
  6. Step 6: Final answer
    x = 119,419.03

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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.