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Finding the Fourth Proportional to 199,080.60, 298,519.35 and 65,912.80

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Solution

The fourth proportional to 199,080.60, 298,519.35 and 65,912.80 is: 98,835.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,080.60 : 298,519.35 = 65,912.80 : x
  2. Step 2: Convert to fraction form
    199,080.60/298,519.35 = 65,912.80/x
  3. Step 3: Cross multiply
    199,080.60x = 298,519.35 × 65,912.80
  4. Step 4: Simplify right side
    199,080.60x = 19,676,246,384.11
  5. Step 5: Solve for x
    x = 19,676,246,384.11/199,080.60
  6. Step 6: Final answer
    x = 98,835.58

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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.