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Finding the Fourth Proportional to 179,779.30, 269,766.15 and 79,954.90

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Solution

The fourth proportional to 179,779.30, 269,766.15 and 79,954.90 is: 119,975.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,779.30 : 269,766.15 = 79,954.90 : x
  2. Step 2: Convert to fraction form
    179,779.30/269,766.15 = 79,954.90/x
  3. Step 3: Cross multiply
    179,779.30x = 269,766.15 × 79,954.90
  4. Step 4: Simplify right side
    179,779.30x = 21,569,125,546.64
  5. Step 5: Solve for x
    x = 21,569,125,546.64/179,779.30
  6. Step 6: Final answer
    x = 119,975.58

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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.