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Finding the Fourth Proportional to 192,866.95, 289,346.62 and 80,484.65

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Solution

The fourth proportional to 192,866.95, 289,346.62 and 80,484.65 is: 120,746.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,866.95 : 289,346.62 = 80,484.65 : x
  2. Step 2: Convert to fraction form
    192,866.95/289,346.62 = 80,484.65/x
  3. Step 3: Cross multiply
    192,866.95x = 289,346.62 × 80,484.65
  4. Step 4: Simplify right side
    192,866.95x = 23,287,961,439.38
  5. Step 5: Solve for x
    x = 23,287,961,439.38/192,866.95
  6. Step 6: Final answer
    x = 120,746.25

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1.5x scale

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.