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Finding the Fourth Proportional to 192,046.60, 287,907.24 and 79,656.67

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Solution

The fourth proportional to 192,046.60, 287,907.24 and 79,656.67 is: 119,417.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,046.60 : 287,907.24 = 79,656.67 : x
  2. Step 2: Convert to fraction form
    192,046.60/287,907.24 = 79,656.67/x
  3. Step 3: Cross multiply
    192,046.60x = 287,907.24 × 79,656.67
  4. Step 4: Simplify right side
    192,046.60x = 22,933,731,609.01
  5. Step 5: Solve for x
    x = 22,933,731,609.01/192,046.60
  6. Step 6: Final answer
    x = 119,417.54

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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.