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Finding the Fourth Proportional to 179,515.80, 269,273.70 and 61,320.60

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Solution

The fourth proportional to 179,515.80, 269,273.70 and 61,320.60 is: 91,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,515.80 : 269,273.70 = 61,320.60 : x
  2. Step 2: Convert to fraction form
    179,515.80/269,273.70 = 61,320.60/x
  3. Step 3: Cross multiply
    179,515.80x = 269,273.70 × 61,320.60
  4. Step 4: Simplify right side
    179,515.80x = 16,512,024,848.22
  5. Step 5: Solve for x
    x = 16,512,024,848.22/179,515.80
  6. Step 6: Final answer
    x = 91,980.90

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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.